WBCS Prelims 2007 Question Paper with Answers & Explanations

Explanation

Treason is the criminal offense of betraying one's own country or sovereign. It is classified as a political crime because it directly threatens the security, sovereignty, or existence of the state from within. Acts that constitute treason typically include waging war against one's nation, adhering to its enemies, or providing aid and comfort to foreign adversaries. Because of its severe nature in undermining the constitutional or legal order of the country, it is treated as one of the most serious political offenses.

Explanation

The suffix -ish often carries a disparaging or negative connotation when appended to nouns referring to people, signifying a weakness, flaw, or drawback. The adjective womanish is used to describe traits traditionally viewed as weaknesses or drawbacks associated with women, such as being weak-willed, overly emotional, or cowardly. This is distinct from womanly, which carries positive and admirable connotations of female maturity and grace.

Explanation

Deciduous trees are plants that shed all of their leaves at a specific time of the year, typically during autumn in temperate climates or during the dry season in tropical and subtropical regions. This physiological adaptation helps the trees conserve water and minimize water loss through transpiration, allowing them to survive unfavorable weather conditions such as cold winters or prolonged droughts. Once the unfavorable season passes, these trees grow new leaves.

Explanation

The idiom to dance attendance on someone means to be constantly available to obey their orders or to comply with their every wish in an excessively attentive and obsequious manner, which is synonymous with being subservient.

Explanation

The phrase "of enormous size" means extremely large, huge, or immense. The adjective "gigantic" is defined as being of very great size, huge, or colossal, making it the most precise synonym to describe someone of enormous size.

Explanation

The idiom the pink of courtesy denotes the absolute peak, height, or highest degree of courtesy, politeness, and manners. The expression is traced back to Shakespeare's play Romeo and Juliet, where Mercutio claims, I am the very pink of courtesy, meaning the quintessence or perfect exemplar of polite behaviour. In this context, greeting guests with the pink of courtesy indicates welcoming them with the highest standard of politeness, which corresponds to doing so respectfully.

Explanation

The idiomatic expression to have other fish to fry means to have more important, interesting, or independent matters to attend to, prioritizing one's own significant affairs over a lesser task.

Conversely, the idiom to play the second fiddle means to take a subordinate, secondary, or less important role relative to someone else, reflecting a lack of independent or primary importance. Therefore, taking a subordinate position is the opposite of having more important, independent matters to pursue.

Explanation

An epilogue is a piece of writing at the end of a work of literature, usually used to bring closure to the narrative. Originating from the Greek word epilogos, which means conclusion, it serves as a final chapter or speech that wraps up the story, often revealing the future fates of the characters or offering a final commentary on the events that transpired.

Explanation

The word omniscient is derived from the Latin prefix omnis, meaning all, and the verb scire, meaning to know. It refers to someone who has infinite awareness, understanding, and insight, or possesses complete and unlimited knowledge of all things.

Explanation

The verb compare is followed by the preposition to when we point out similarities between two completely different classes of things, often to create a poetic metaphor or figure of speech (such as comparing a beautiful lady to the moon). In contrast, compare is followed by with when examining two similar things of the same class to weigh their similarities and differences. Since a lady and the moon are fundamentally different entities being compared for their radiant beauty, the correct preposition to use here is to.

Explanation

The preposition across is used to describe movement or distribution throughout a given area. In the phrase across the globe, it serves as a standard idiomatic expression meaning throughout the entire world or from all parts of the world. Thus, it correctly indicates that competitors from various parts of the world participated in the game.

Explanation

The adjective angry is grammatically paired with the preposition with when the object of the anger is a person or a group of people, such as the subordinates. This standard prepositional colocation is used to express anger directed toward someone.

Explanation

The preposition against is used with the noun hatred to denote a strong, active feeling of hostility, opposition, or animosity directed toward a specific individual. In this context, Shylock's deep-rooted and active adversarial feelings toward Antonio are represented by nurturing a hatred against him.

Explanation

A plutocracy is a system of government where society is ruled or controlled by the wealthiest class of people. The term originates from the Greek words ploutos, which means wealth, and kratos, which means rule or power. In this form of governance, political power and decision-making are concentrated in the hands of the rich, who use their economic influence to control state policies and institutions.

Explanation

An anarchist is an individual who rebels against, opposes, or seeks the destruction of established authority, governmental power, and organized state control. Rooted in the philosophy of anarchism, such a person advocates for a society free from coercive government rule, promoting voluntary cooperation and self-governing institutions instead of a state structure.

Explanation

The word apprehensive refers to being anxious or fearful that something bad or unpleasant will happen in the future. When a patient suffers from a continuous fever for an entire week, the relatives naturally develop deep anxiety, worry, and fear regarding the outcome and effectiveness of the medical treatment being administered.

Explanation

The verb apprehend means to anticipate or look forward to something with anxiety, dread, or fear. When facing a threat such as an unknown danger, the natural psychological response involves worry or fear. Apprehended is the most appropriate term to describe expecting or sensing an impending danger with a feeling of unease or dread.

Explanation

The adjective effective means producing a decided, decisive, or desired result. In the context of comparing different methods, a method might be logically correct or not wrong, but another method can be more effective by achieving the intended outcome with greater success, speed, or quality.

Explanation

The phrase "with due solemnity" indicates a formal, serious, and respectful manner of commemoration. The verb "observed" is the standard grammatical choice when an occasion, event, or national day is marked in a formal or dignified way, making it the most appropriate fit for the sentence.

Explanation

The idiomatic expression at daggers drawn signifies a state of extreme hostility, bitter enmity, or being violently opposed to each other. It originates from the literal action of drawing daggers out of their sheaths, indicating that two parties are ready to fight or are on the verge of open conflict.

Explanation

The term "heyday" refers to the stage or period of greatest success, prosperity, popularity, or vigor, representing a peak or prime. The direct opposite of this state of zenith and thriving activity is a period of gradual deterioration, loss of strength, or fading prominence, which is represented by "days of decline."

Explanation

The phrasal verb give in means to cease fighting, submit to pressure, or surrender to an opposing force or authority. In this context, after resisting for some time, the robbers eventually surrendered to the police, which is directly conveyed by the verb yielded.

Explanation

The proverb, which originates from biblical texts such as Deuteronomy 8:3 and Matthew 4:4, uses bread as a metaphor for physical survival, basic worldly goods, and material needs. The complete saying implies that human beings require more than just material prosperity and physical sustenance to lead a truly fulfilling life, emphasizing that spiritual, mental, and emotional nourishment are equally essential. Thus, in this context, bread represents material prosperity.

Explanation

The word credulous describes a person who shows a great readiness to believe things on slight or no evidence, making them easily deceived or gullible, and consequently not dependable.

Explanation

The word compatriot is defined as a fellow citizen or a person who originates from the same country as another. Because the sentence specifies that the two men come from the same country, they are correctly identified as compatriots.

Explanation

Agni-III is an intermediate-range ballistic missile (IRBM) developed indigenously by India's Defence Research and Development Organisation (DRDO) under the Integrated Guided Missile Development Programme. It is designed as a two-stage, solid-propellant surface-to-surface ballistic missile capable of carrying both conventional and nuclear warheads. With an operational strike range of 3,000 to 3,500 kilometers, its reach classifies it as an intermediate-range ballistic missile. The first successful flight test of the Agni-III missile was carried out on April 12, 2007, from Wheeler Island off the coast of Odisha, confirming its performance parameters and strategic capabilities.

Explanation

Ethylene is a gaseous phytohormone that promotes and accelerates senescence in plant organs, particularly leaves, flowers, and fruits. It stimulates the breakdown of chlorophyll, proteins, and nucleic acids, which leads to leaf yellowing and tissue deterioration. Furthermore, ethylene is actively involved in the abscission of leaves and flowers, and the ripening of climacteric fruits.

Explanation

Lord Curzon, who served as the Viceroy of India from 1899 to 1905, made this statement during his official tour of East Bengal in February 1904. In an attempt to win the support of the Muslim community for the impending partition of Bengal, he addressed a gathering of Muslims in Dacca and assured Nawab Salimullah that the creation of the new province of Eastern Bengal and Assam would carve out a territory where Muslims would be in a clear majority, thereby restoring to them a position of unity and influence they had not experienced since the era of Mughal rule.

Explanation

The Brahma Sabha was founded in Calcutta in August 1828 by the social reformer Raja Ram Mohan Roy and his associates to promote monotheism and reform Hindu society. Tarachand Chakraborti, a prominent intellectual of the Young Bengal movement and a close associate of Raja Ram Mohan Roy, was appointed as the first secretary of the Sabha.

Explanation

Article 280 of the Constitution of India mandates the creation of the Finance Commission by the President of India. The President constitutes this body every five years or earlier to address fiscal federalism and recommend the distribution of net tax proceeds between the Union and the states, as well as the allocation of grants-in-aid to the states out of the Consolidated Fund of India. It serves as a crucial quasi-judicial body to maintain balance in the financial relations between the central and state governments.

Explanation

The primary source of irrigation in India is ground water via wells and tube-wells, which covers more than 60 percent of the total net irrigated area. Canals are the second major source of irrigation, accounting for about 24 to 26 percent of the country's irrigated area. Canal irrigation is highly effective in the fertile, low-level relief plains of Northern India, coastal lowlands, and parts of the peninsular region, where perennial rivers provide a steady supply of water.

Explanation

James Chadwick discovered the neutron in 1932. By bombarding beryllium with alpha particles, he observed a deeply penetrating radiation that was not deflected by electric or magnetic fields. He determined that this radiation consisted of uncharged particles with a mass slightly greater than that of a proton, which he named neutrons. This discovery completed the fundamental model of the atomic nucleus and earned him the Nobel Prize in Physics in 1935.

Explanation

Sarojini Naidu presided over the Kanpur session of the Indian National Congress in 1925, making her the first Indian woman to achieve this distinction. A prominent leader of the Indian independence movement, she was widely known as the Nightingale of India for her evocative poetry and powerful oratory. Her leadership at the 1925 session marked a significant milestone for women's representation in India's nationalist struggle.

Explanation

The Palghat Gap, also known as the Palakkad Gap, is a major low mountain pass in the Western Ghats located between the Nilgiri Hills to the north and the Anaimalai Hills to the south. This gap is approximately 32 kilometers wide and acts as a natural break in the mountain range, straddling the border between Kerala and Tamil Nadu. It serves as a crucial inland communication and transport corridor, connecting the major port city of Cochin (Kochi) on the west coast to Madras (Chennai) on the east coast via road and rail networks.

Explanation

Section 1(2) of the Protection of Women from Domestic Violence Act, 2005, explicitly states that the Act extends to the whole of India except the State of Jammu and Kashmir. During this period, central laws did not automatically extend to Jammu and Kashmir due to the special status and constitutional arrangements under Article 370 of the Constitution of India, which required the state legislature's concurrence for such laws to apply. As a result, the state was excluded from the applicability of this central legislation at the time of its enactment.

Explanation

The Argumentative Indian is a book written by the Nobel Prize-winning economist Amartya Sen, published in 2005. It is a collection of essays that discuss India's history, culture, and identity, focusing on the country's long-standing tradition of public debate, intellectual pluralism, and heterodoxy. Sen argues that this rich heritage of argumentation and dialogue has played a crucial role in shaping Indian democracy and secularism.

Explanation

The Fundamental Duties of citizens were incorporated into the Indian Constitution through the 42nd Constitutional Amendment Act of 1976. This inclusion was based on the recommendations of the Swaran Singh Committee, which was constituted to suggest provisions for national duties. The amendment introduced a new part, Part IV-A, and a single article, Article 51-A, which initially specified ten basic duties for citizens to follow in order to promote a sense of discipline and commitment to the nation.

Explanation

The total number of boys in the row is calculated by adding the position of A from the left, the number of boys between A and B, and the position of B from the right.

Total boys = 15 + 3 + 4 = 22

Since C sits immediately next to the left of A, and A is at the 15th position from the left, C is at the 14th position from the left.

To find the position of C from the right, we use the standard relation:

Position from right = Total number of boys - Position from left + 1

Substituting the values gives:

Position of C from right = 22 - 14 + 1 = 9

Explanation

Allasani Peddana was a celebrated 16th-century Telugu poet in the court of Emperor Krishnadevaraya of the Vijayanagara Empire. He was the foremost of the Astadiggajas, the group of eight legendary scholars who adorned the royal court. For his unparalleled contributions to Telugu literature, particularly his masterpiece Manu Charitramu, he was honored by the king with the title Andhra-Kavita-Pitamaha, meaning the grandfather of Telugu poetry. Krishnadevaraya held him in such high esteem that he even personally helped lift the poet's palanquin in recognition of his literary genius.

Explanation

Hemophilia and Color blindness are classic examples of hereditary genetic diseases. While there are hereditary forms of Alzheimer's disease (familial Alzheimer's), Down's syndrome, in its most common form (Trisomy 21), is due to a sporadic chromosomal error (nondisjunction) and is generally not inherited from parents. Therefore, Down's syndrome is largely considered not a hereditary disease.

Explanation

As of 2007, West Bengal had 119 municipalities governed under the West Bengal Municipal Act, 1993. These municipalities, together with municipal corporations, notified area authorities, and industrial township authorities, administer the urban areas across the state.

Explanation

AGMARK is a quality certification mark employed on agricultural products in India. It is legally backed by the Agricultural Produce (Grading and Marking) Act of 1937, which was amended in 1986. The certification is issued by the Directorate of Marketing and Inspection, an agency of the Government of India. This mark assures consumers that the agricultural products they purchase conform to a specified set of standard parameters, covering aspects such as purity, grading, hygiene, and chemical composition.

Explanation

Zuleyka Rivera, representing Puerto Rico, was crowned Miss Universe 2006. The 55th annual Miss Universe pageant took place on July 23, 2006, at the Shrine Auditorium in Los Angeles, California, United States. Her victory marked the fifth time a contestant from Puerto Rico won the coveted international beauty pageant.

Explanation

Let Raja's age be x.

Since Raja is younger than Rik by 7 years, Rik's age is: x + 7

Since Raja is older than Ratul by 6 years, Ratul's age is: x - 6

The sum of ⅔ of Raja's age, ⅗ of Rik's age, and ¾ of Ratul's age is 36 years:

⅔x + ⅗(x + 7) + ¾(x - 6) = 36

Multiplying the entire equation by the least common multiple of the denominators 3, 5, and 4, which is 60:

40x + 36(x + 7) + 45(x - 6) = 2160

40x + 36x + 252 + 45x - 270 = 2160

121x - 18 = 2160

121x = 2178

x = 18

Explanation

The Mughal Emperor Akbar abolished the Jizya tax on non-Muslim subjects in 1564 CE. This policy of religious tolerance, which also included the abolition of the pilgrimage tax on Hindus, was part of his broader vision of Sulh-i-kul (universal peace) aimed at integrating the diverse communities of India into a cohesive empire and securing the loyalty of the Rajput and Hindu populations.

Explanation

Mahatma Gandhi founded the All India Harijan Sevak Sangh, initially called the All India Anti-Untouchability League, on September 30, 1932. The organization was established in Pune in the aftermath of the Poona Pact to combat the practice of untouchability and work for the social, educational, and economic upliftment of the depressed classes in India. Gandhi coined the term Harijan, meaning children of God, to refer to these marginalized communities and also launched a weekly journal of the same name to advocate for their rights and promote social integration.

Explanation

According to successive Agricultural Censuses in India, the proportion of both the number of holdings and the operated area under marginal farms (less than 1 hectare) has steadily increased over the decades. This trend of rising marginalization is primarily driven by high population pressure, sub-division of land, and fragmentation of joint family holdings. Consequently, the statement that marginal farms decreased is false, making it the correct choice.

Explanation

The Sedition Committee Report of 1918, also known as the Rowlatt Committee Report, recorded that the first indications of the revolutionary movement in India were observed in Maharashtra, particularly among the Chitpavan Brahmins of the Pune district.

The earliest foundation of militant nationalism was laid in Maharashtra by Vasudev Balwant Phadke, who organized the Ramosi Peasant Force in 1879 to overthrow British rule through armed rebellion. Subsequently, in 1897, the Chapekar brothers (Damodar Hari Chapekar and Balkrishna Hari Chapekar) assassinated the Pune Plague Commissioner Walter Charles Rand and Lieutenant Ayerst, which is regarded as the first active outbreak of revolutionary violence and political assassination in modern India.

Explanation

The Supreme Court of India, in the landmark judgment of Dalmia Cement (Bharat) Ltd. v. Union of India delivered on April 25, 1996, dismissed the petitions of the cement, fertilizer, and sugar industries. The Court upheld the constitutional validity of the Jute Packaging Materials (Compulsory Use in Packing Commodities) Act, 1987, ruling that the mandatory packaging requirements are reasonable restrictions under Article 19(6) of the Constitution of India designed to protect the economic security and livelihood of millions of raw jute producers and industrial workers.

Explanation

The forearm acts as a third-class lever when lifting an object with the hand. In this biomechanical system, the elbow joint serves as the fulcrum, the bicep muscle provides the effort by inserting onto the forearm close to the elbow, and the load is the weight of the object held in the hand. Since the effort is applied between the fulcrum and the load, it functions as a third-class lever.

Explanation

To determine if xy < 0, we need to know whether x and y have opposite signs.

Statement I states x > 2, which means x is a positive number, but it provides no information about y.

Statement II states y > -1, which allows y to be positive, zero, or negative, but it provides no information about x.

Combining both statements, we know x is positive, and y can be positive, negative, or zero. For instance, if x = 3 and y = 2, then xy = 6, which is greater than 0. If x = 3 and y = -0.5, then xy = -1.5, which is less than 0. If x = 3 and y = 0, then xy = 0. Because multiple outcomes are possible, both statements together are not sufficient to uniquely answer the question.

Explanation

Since m is an integer, 2m is also an integer. Writing the equation in Statement I as n = (2m)² and substituting k = 2m, we get n = k², where k is an integer. This proves that n is definitely the square of an integer, making Statement I sufficient to answer the question. Statement II is not sufficient because for p = 3 and q = 4, n = 5, which is not the square of an integer, whereas for p = 0 and q = 4, n = 4, which is the square of the integer 2.

Explanation

Knowing the financial performance of a company in 2003 and 2005 does not provide any logical or mathematical basis to determine its financial performance in the year 2004. A company's profit or loss in any given year is independent of the profits or losses in adjacent years, as market conditions, operational costs, revenues, and other financial variables change dynamically from year to year. Consequently, Statement I and Statement II together are not sufficient to answer whether the company made a profit in 2004, and additional specific financial data for the year 2004 is required.

Explanation

Let the number be N. For N to be divisible by 9, there must exist an integer m such that N = 9m.

According to Statement II, the number is divisible by 27. This means we can express N as N = 27k for some integer k. Since 27 = 9 × 3, we can rewrite this expression as:

N = 9(3k)

Because 3k is an integer, N is guaranteed to be a multiple of 9. Therefore, Statement II alone is sufficient to determine that the number is divisible by 9.

Explanation

Article 154 (1) of the Constitution of India explicitly provides that the executive power of the State shall be vested in the Governor. It dictates that these powers shall be exercised by the Governor either directly or through officers subordinate to him in accordance with the Constitution. This constitutional provision designates the Governor as the formal or titular head of the state executive, while the actual executive authority is exercised by the Council of Ministers headed by the Chief Minister.

Explanation

White vitriol is the historically common chemical name for zinc sulfate heptahydrate, which has the chemical formula ZnSO₄,7H₂O. This compound exists as colorless, crystalline solids or white powder that is highly soluble in water. It is widely used in the preservation of wood, in the manufacture of paper, as a mordant in dyeing, and in medicine as an astringent and dietary zinc supplement.

Explanation

The Bonded Labour System (Abolition) Act was enacted by the Parliament of India in 1976 to prevent the economic and physical exploitation of the weaker sections of society. This legislation formally abolished the bonded labour system throughout the country, freeing all bonded labourers from their obligations and discharging them from any outstanding debts associated with their bondage. Although the Act was passed in 1976, it was deemed to have come into force on 25 October 1975 to give immediate legal effect to the preceding ordinance.

Explanation

Punjab has the highest per-hectare consumption of chemical fertilizers in the country. This intensive usage is driven by the state's highly productive and mechanized agriculture, characterized by a dominant rice-wheat cropping pattern introduced during the Green Revolution. The high cropping intensity and widespread cultivation of high-yielding varieties of crops necessitate a heavy application of fertilizers like nitrogen, phosphorus, and potassium to maintain high crop yields, leading Punjab's average consumption per hectare to far exceed the national average.

Explanation

Lord Ripon, who served as the Viceroy of India from 1880 to 1884, repealed the Vernacular Press Act in 1882. This act had severely restricted the freedom of the native language press. By repealing it, Lord Ripon restored the freedom of the vernacular press, bringing it on par with the English-language press. This step was part of his liberal administrative policy which aimed at earning the goodwill of the Indian public and promoting local self-governance.

Explanation

An ecological niche is the functional role, position, and status of a species within its ecosystem. It describes how a species survives, obtains its food and shelter, and interacts with other organisms and its physical environment. Since it refers to a species' unique lifestyle and functional relationships rather than being a physical biotic or abiotic component itself, none of the other choices define it accurately.

Explanation

Nana Pharnabis, also known as Nana Phadnavis, was an influential minister and statesman of the Maratha Empire during the Peshwa administration in Pune. He was called the "Chanakya of Maratha Politics" due to his profound administrative acumen, strategic diplomacy, and financial intelligence. His leadership was instrumental in preserving the stability of the Maratha Empire and holding the confederacy together against external threats, most notably the British East India Company, following the Third Battle of Panipat.

Explanation

The National Commission on Population (NCP) was established on 11 May 2000 to monitor, review, and direct the implementation of the National Population Policy. While it was initially placed under the administrative control of the Planning Commission, it was reconstituted on 19 May 2005 and its administrative control was transferred to the Ministry of Health and Family Welfare.

Explanation

Dr. V. Shanta, a pioneering oncologist and the long-time head of the Adyar Cancer Institute in Chennai, was conferred the 2005 Ramon Magsaysay Award in the category of Public Service. The award recognized her lifetime dedication to making cancer treatment accessible, affordable, and compassionate for patients across India. She was instrumental in transforming the institute from a small facility into a world-class center for oncological research and clinical care, while championing public health initiatives like early cancer detection programs and community-based health training.

Explanation

The Green Revolution in India, initiated in the late 1960s, led to various socio-economic disparities despite significantly increasing agricultural production. It contributed to inter-regional inequality because its success was heavily concentrated in areas with assured irrigation, such as Punjab, Haryana, and Western Uttar Pradesh, leaving rain-fed and arid regions relatively underdeveloped. It caused inter-crop inequality as the technological breakthrough was primarily confined to wheat and rice, while other crops like pulses, oilseeds, and coarse grains did not experience comparable yield growth. Furthermore, it exacerbated inter-class inequality because the high cost of modern inputs like high-yielding variety seeds, chemical fertilizers, and tubewell irrigation infrastructure was far more accessible to rich, large-scale farmers, thereby widening the economic gap between them and small, marginal, or landless farmers.

Explanation

The Constituent Assembly of India, which was tasked with framing the Constitution of India, had about 300 members. While the Cabinet Mission Plan of 1946 originally proposed a total of 389 members for the undivided nation, the subsequent partition of India led to the separation of the Muslim League representatives to form a separate constituent assembly for Pakistan. Following this reorganization, the membership of the Indian Constituent Assembly stood at 299, which is standardly rounded to and described as 300 members in major historical records and standard academic textbooks such as the NCERT. Of these members, a core group of leaders, including B. R. Ambedkar, Jawaharlal Nehru, Vallabhbhai Patel, and Rajendra Prasad, played the most pivotal roles in drafting and finalizing the Constitution.

Explanation

Rajendra Chola I conducted a historic military expedition to Northern India and Bengal between 1019 and 1024 CE. His forces successfully marched up to the Ganges River, defeating the Pala king Mahipala I of Bengal. To commemorate this victory, he assumed the prestigious title of Gangaikonda Chola, meaning the Chola who conquered the Ganges, and built a new capital city called Gangaikondacholapuram along with a magnificent Shiva temple.

Explanation

Chamera is a hydroelectric power station located on the Ravi River in the Chamba district of Himachal Pradesh. Developed in multiple stages by the National Hydroelectric Power Corporation, it utilizes the water resource of the Ravi River for electricity generation rather than nuclear fission.

Explanation

Kiran Desai was awarded the Man Booker Prize in 2006 for her novel, The Inheritance of Loss. Written over a period of seven years, the novel explores the impact of colonialism, globalization, and migration through the intersecting lives of characters living in a remote town in the northeastern Himalayas. Winning this prestigious award at the age of 35 made her the youngest woman to win the Man Booker Prize at that point in its history.

Explanation

Iron becomes passive when treated with fuming nitric acid HNO₃. Fuming nitric acid is an extremely powerful oxidizing agent. Upon contact with iron, it rapidly oxidizes the surface of the metal to form a thin, dense, and highly adherent layer of iron oxide, primarily ferrosoferric oxide Fe₃O₄. This protective oxide film acts as a physical barrier that prevents any further contact between the acid and the underlying bulk metal. As a result of this passivation process, the chemical reaction ceases almost immediately, and the iron does not dissolve.

Explanation

The United Nations Global Counter-Terrorism Strategy was adopted by consensus by the United Nations General Assembly on September 8, 2006, under Resolution 60/288. It represents a unique global instrument to enhance national, regional, and international efforts to counter terrorism. Through its adoption, all United Nations member states agreed for the first time to a common strategic and operational framework to fight terrorism. The General Assembly is responsible for reviewing this strategy every two years to ensure it remains a living document that is attuned to the counter-terrorism priorities of member states.

Explanation

The Akali Movement, also known as the Gurdwara Reform Movement, started in 1920-1921. It was a non-violent struggle initiated by the Sikh community to liberate historical Gurdwaras from the control of corrupt, British-supported mahants (priests). The movement gained immense momentum in 1921 following key events such as the Tarn Taran Sahib clash in January 1921 and the Nankana Sahib massacre in February 1921, where peaceful Akali reformers were attacked by the mahant's mercenaries. These events mobilized the masses, leading to a highly organized protest structure under the Shiromani Gurdwara Parbandhak Committee and the Shiromani Akali Dal to reclaim management of their holy shrines.

Explanation

The All-India Kisan Sabha was established in Lucknow in April 1936 during the Lucknow session of the Indian National Congress. Swami Sahajanand Saraswati, a prominent peasant leader from Bihar, was elected as its first President, and N. G. Ranga was appointed as its General Secretary. The organization was formed to coordinate and lead peasant struggles across India against landlord exploitation, zamindari oppression, and British imperialist economic policies.

Explanation

The screen of a cinema hall is designed to be white and rough to ensure optimal visibility for the entire audience. The white color is chosen because it reflects all wavelengths of visible light, ensuring that the projected images are reproduced in their true colors. The rough surface of the screen prevents specular (mirror-like) reflection, which would reflect light in only a single direction and create glare for some viewers while leaving others in the dark. Instead, the rough texture causes the incident light rays to undergo diffuse reflection, or scattering. This scattering disperses the light rays uniformly in all directions, making the projected movie clearly visible to every person in the hall, regardless of their seating angle or position.

Explanation

The National Knowledge Commission was constituted on 13 June 2005 by the Prime Minister of India, Dr. Manmohan Singh, as a high-level advisory body to the Prime Minister Office. Sam Pitroda served as its Chairperson. The commission was established to recommend reforms in fields such as education, science and technology, agriculture, industry, and governance, with the primary objective of transforming India into a vibrant knowledge-based economy.

Explanation

Goa won the 2005-06 Santosh Trophy (60th National Football Championship) by defeating Maharashtra 3-1 in extra time during the final played at the Jawaharlal Nehru International Stadium in Kochi, Kerala. This victory marked Goa's fourth title in the history of the national tournament.

Explanation

The Asiatic Society was founded by Sir William Jones, a British lawyer and renowned Orientalist, on January 15, 1784, in Calcutta. The primary objective of the society was to initiate, facilitate, and promote oriental research and studies on the history, antiquities, arts, sciences, and literature of Asia. Sir William Jones served as its founding president and delivered a series of famous discourses that significantly contributed to the understanding of Indo-European languages and Indian heritage.

Explanation

Baji Rao I, who served as Peshwa from 1720 to 1740 under Chhatrapati Shahu, championed the ideal of Hindupadapadshahi (Hindu Empire). He envisioned expanding Maratha power into northern India by weakening the declining Mughal Empire and uniting various Hindu rulers under a common banner. His forward-looking expansionist policy successfully extended Maratha influence beyond the Deccan into Malwa, Gujarat, and Bundelkhand.

Explanation

Guru Nanak Dev Ji founded Sikhism in the late 15th century CE in the Punjab region of the Indian subcontinent. As the first of the ten Sikh Gurus, he travelled extensively to spread the message of Ik Onkar, which refers to the one supreme, universal creator. He emphasized a lifestyle of honest living, sharing with the needy, and constant remembrance of the divine, establishing the foundational spiritual and social tenets of the Sikh faith.

Explanation

The Indian Association, also known as the Indian National Association, was founded in Calcutta on July 26, 1876, by Surendranath Banerjee along with Ananda Mohan Bose. It was one of the most prominent pioneering nationalist organizations of the pre-Congress era in British India. S. N. Banerjee established the association to bring the diverse public of India onto a common political platform, advocate for civil services reforms, and create a strong public opinion on political rights and nationalist issues.

Explanation

To find how many 7's are preceded by 9 and followed by 6, we look for the sequence 9 - 7 - 6 in the given number series:

7, 8, 9, 7, 6, 5, 3, 4, 2, 8, 9, 7, 2, 4, 5, 9, 2, 9, 7, 6, 4, 7

Scanning through the series reveals the following matches: First occurrence: 7, 8, (9, 7, 6), 5, 3, 4, 2, 8, 9, 7, 2, 4, 5, 9, 2, 9, 7, 6, 4, 7 Second occurrence: 7, 8, 9, 7, 6, 5, 3, 4, 2, 8, 9, 7, 2, 4, 5, 9, 2, (9, 7, 6), 4, 7

There are exactly two such 7's that satisfy the given conditions.

Explanation

A virion is the complete, structurally intact, and infectious extracellular virus particle. It contains the genetic material, which can be either DNA or RNA, enclosed within a protective protein shell called a capsid, and in some cases, an outer lipid envelope. The primary function of the virion is to protect the viral genome and facilitate its transfer into a suitable host cell to initiate infection.

Explanation

During the Lahore session of the All-India Muslim League held in March 1940, the historic Lahore Resolution, also known as the Pakistan Resolution, was adopted. Presented by Fazlul Huq, the Premier of Bengal, and championed by Muhammad Ali Jinnah, this resolution formally demanded the creation of independent sovereign states for Muslims in the Muslim-majority northwestern and eastern zones of British India. This landmark declaration marked the Muslim League's first official and collective call for a separate homeland, which ultimately led to the partition of India.

Explanation

The United Progressive Alliance is a coalition of political parties in India led by the Indian National Congress. It was formed after the 2004 general election to establish a majority government at the center, with Dr. Manmohan Singh serving as the Prime Minister of the coalition government.

Explanation

Carbon dioxide (CO₂) is a major greenhouse gas that plays a dominant role in warming the Earth's surface. It absorbs thermal infrared radiation emitted by the Earth and re-radiates it in all directions, including back down towards the surface. This process prevents heat from escaping directly into space, thereby causing the greenhouse effect. Because of its high concentration and persistence in the atmosphere, it contributes the most to the greenhouse effect among the listed substances.

Explanation

In botany, a peduncle is defined as the primary stalk that supports an entire inflorescence or a solitary flower. It acts as the main axis of the floral arrangement, connecting the reproductive structures of the plant directly to the main stem or branch to facilitate the transport of water and nutrients.

Explanation

According to the 2001 Census of India, the overall literacy rate of India was 64.84%, while the literacy rate of West Bengal was 68.64%. This makes West Bengal's literacy rate higher than the national average. This trend is also reflected in the subsequent 2011 Census, where West Bengal recorded a literacy rate of 76.26% against the national average of 74.04%.

Explanation

The Indian Constitution establishes an independent judiciary to safeguard the rule of law and protect the fundamental rights of citizens. This independence is secured through several constitutional provisions, such as Article 50 which directs the state to separate the judiciary from the executive. Additionally, the security of tenure of judges, salaries and allowances charged directly on the Consolidated Fund of India and the respective states, and the power of the courts to punish for their own contempt ensure that the judicial system functions autonomously without any external interference or control from the legislative and executive organs of the government.

Explanation

The Government of India Act, 1935, served as the primary administrative framework and structural basis for the Constitution of India. Around 250 provisions of the Constitution were directly influenced by or adapted from this legislation. Key features incorporated from this Act include the federal scheme, the office of the governor, the federal judiciary, public service commissions, emergency provisions, and detailed administrative structures.

Explanation

The Saka Era, also known as Sakabda, was founded by the Kushana emperor Kanishka I upon his ascension to the throne in 78 A.D. It represents a major historical calendar system in India, marking the starting point of the Indian National Calendar which was officially adopted by the Government of India in 1957. The zero year of this calendar corresponds to the Gregorian calendar year 78 A.D., with its new year beginning on the vernal equinox, typically falling on March 22.

Explanation

The automobile industry is widely referred to as a "Sunrise Industry" or "Sunrise Sector". A sunrise industry is a newly developing sector that shows high growth potential, rapid innovation, and significant future prospects. The automobile sector, particularly in emerging economies, has experienced massive growth due to technological advancements, rising consumer demand, and its substantial contribution to employment and overall economic development.

Explanation

In a superoxide compound, such as potassium superoxide (KO₂), the alkali metal cation carries a +1 charge, which leaves the superoxide anion with a net charge of -1, represented as O₂^-. By setting up the equation for the oxidation number of oxygen (x) in this diatomic ion, we have 2x = -1. Solving for x yields x = -1/2, representing the oxidation state of each oxygen atom in a superoxide.

Explanation

Mercury is a liquid metal with a high thermal conductivity. When the thermometer comes into contact with a patient's body, mercury quickly absorbs heat and rapidly reaches thermal equilibrium with the body. This efficient heat conduction causes it to expand uniformly and swiftly up the capillary tube, allowing for a fast and highly accurate reading of the body temperature.

Explanation

Kala-azar, also known as visceral leishmaniasis, is a slow-progressing disease caused by a protozoan parasite of the genus Leishmania. In India, Leishmania donovani is the primary parasite responsible for this condition. It is transmitted to humans through the bite of infected female phlebotomine sandflies belonging to the genus Phlebotomus, which breed in warm, humid environments with organic waste.

Explanation

Amélie Mauresmo won the 2006 Wimbledon Women's Singles Championship, capturing her second Grand Slam singles title of her career. Her victory at the All England Club in July 2006 made her the first French woman to win the prestigious grass-court tournament in the Open Era, following her success at the Australian Open earlier that same year.

Explanation

Shamsuddin Ilyas Shah (Ilias Shah) was the founder of the independent Ilyas Shahi dynasty and the independent Sultanate of Bengal. In 1342, he asserted autonomy from the Delhi Sultanate by consolidating control over the three major fragmented regions of medieval Bengal: Lakhnauti, Sonargaon, and Satgaon. By uniting these territories under his sovereign rule, he laid the administrative, geographic, and political foundations of a unified Bengali state, formally designating the region as Bangalah. He also successfully defended his kingdom against military campaigns led by Delhi Sultan Firuz Shah Tughluq, solidifying and ensuring the long-term survival of the independent Bengal Sultanate.

Explanation

The First Factory Act of 1881 was enacted during the viceroyalty of Lord Ripon, who served as the Viceroy of India from 1880 to 1884. This legislative measure was introduced to regulate and improve the working conditions of labor in Indian factories, focusing primarily on the welfare of child laborers. Under this act, the employment of children below seven years of age was prohibited, working hours for children between seven and twelve years of age were limited to nine hours per day, and provisions were made for mandatory rest intervals and four holidays per month.

Explanation

Roger Federer won the 2006 US Open men's singles tennis championship, capturing his third consecutive title at the tournament. He defeated Andy Roddick in the final in four sets with a score of 6-2, 4-6, 7-5, 6-1. This victory was part of a highly dominant season for Federer, marking his ninth Grand Slam singles title overall and his third Grand Slam title of the year 2006.

Explanation

The Liberhan Commission was appointed by the Government of India in December 1992 to investigate the sequence of events that led to the destruction of the Ram Janmabhoomi-Babri Masjid structure at Ayodhya. Headed by retired High Court Judge Manmohan Singh Liberhan, the commission was tasked with identifying the individuals, organizations, and security lapses associated with the demolition of the structure.

Explanation

Henry Vivian Derozio, an Anglo-Indian teacher of history and English literature at Hindu College, Calcutta, in the late 1820s, was the chief inspiration behind the Young Bengal Movement. Drawing inspiration from the ideas of the French Revolution, Derozio instilled a spirit of free thinking, rationalism, and scientific inquiry among his students, who were collectively known as the Derozians. He encouraged them to question all authority, challenge orthodox Hindu religious customs, and champion the ideals of liberty, equality, and freedom of expression, driving a radical intellectual awakening in Bengal.

Explanation

Brahmajit Gaur was a prominent general in the army of Sher Shah Suri, the founder of the Sur Empire. After Sher Shah defeated the Mughal Emperor Humayun in the Battle of Kannauj (Bilgram) in 1540, he dispatched a military contingent under the command of Brahmajit Gaur to pursue the fleeing Mughal emperor. His high military command and leadership roles demonstrate the administrative and military recruitment policies of the Sur dynasty, which utilized talented commanders based on merit and capability.

Explanation

The Kachchh district of Gujarat is the largest district in India by geographical area. Spanning approximately 45,674 square kilometers, it encompasses a vast and diverse landscape, including the Great Rann of Kachchh.

Explanation

To divide two decimals, they can be expressed as fractions:

0.1 = ⅒ 0.01 = ¹⁄₁₀₀

Substituting these fractions into the division expression:

(0.1)/(0.01) = (1)/(10){¹⁄₁₀₀}

Multiplying the numerator by the reciprocal of the denominator:

⅒ × 100 = 10

Alternatively, shifting the decimal point two places to the right in both the numerator and the denominator simplifies the calculation directly:

(0.1)/(0.01) = ¹⁰⁄₁ = 10

Explanation

According to the Agriculture Census database, the average size of operational land holdings in India has witnessed a steady decline over the decades due to high population pressure, inheritance laws, and the resulting fragmentation of land. The average size of operational holdings, which stood at 2.28 hectares in 1970-71, decreased to 1.41 hectares in 1990-91, and further declined to 1.33 hectares in 2000-01 and 1.23 hectares in 2005-06. This continuous subdivision of land means that the vast majority of agricultural holdings in India are classified as marginal and small, with the overall average remaining well below 2 hectares.

Explanation

In the Line of Fire: A Memoir is the autobiography of Pervez Musharraf, the former President and military leader of Pakistan. Published in September 2006, the book details his life, his rise to power, and his decision-making during critical moments in Pakistan's history, such as the Kargil Conflict and the post-September 11 alliance with the United States in the War on Terror.

Explanation

For the given condition x < 2, none of the statements I, II, III, or IV are always true.

If we choose x = 1, then x is positive, which makes Statement I (x is negative) false.

If we choose x = -1, then x is negative, which makes Statement II (x is positive) false.

If we choose x = -1, then 2x = -2. Since -2 is less than -1, Statement III (2x is greater than or equal to x) is false.

If we choose x = 0.5, then x squared is 0.25. Since 0.25 is less than 0.5, Statement IV (x squared is greater than or equal to x) is false.

Since every statement has at least one valid counterexample under the condition x < 2, none of them are always true.

Explanation

Khadar refers to newer alluvial soil found in river floodplains, which is younger and gets flooded annually. It can also be calcareous due to the presence of calcium carbonates. Anushilan, however, refers to a revolutionary organization and has no connection to geographical or soil terms. Therefore, Khadar is not Anushilan.

Explanation

The Vanguard of Indian Independence (commonly known simply as Vanguard) was an émigré Communist journal started by Manabendra Nath Roy (M.N. Roy) in May 1922. Published from exile in Berlin, Germany, it served as the official organ of the émigré Communist Party of India. The journal was used to disseminate Marxist and socialist ideas, analyze Indian conditions from a revolutionary perspective, and influence the national movement in India. Although banned and regularly confiscated by the British authorities, it succeeded in establishing direct communication channels with early socialist groups inside India.

Explanation

The term doab refers to the land lying between two flowing rivers. In the Punjab region, the names of the doabs are formulated by merging the names of the bounding rivers. The name Bari Doab is a portmanteau of the Beas and Ravi rivers, derived by combining the first syllables Ba from Beas and Ri from Ravi. This fertile plain is geographically situated between the Beas River on its east and the Ravi River on its west.

Explanation

The Champaran Satyagraha of 1917 was Mahatma Gandhi's first Satyagraha movement in India, launched in the Champaran district of Bihar. It was undertaken to address the grievances of the local peasants who were being forced by European planters to cultivate indigo under the highly exploitative tinkathia system. Under this system, peasants were legally bound to grow indigo on three-twentieths of their land, which caused them immense economic hardship. Gandhi's peaceful agitation and subsequent inquiry forced the government to abolish the tinkathia system and return a portion of the illegally extracted money to the peasants.

Explanation

The Non-Cooperation Movement was called off by Mahatma Gandhi on 11th February 1922 during a meeting of the Congress Working Committee in Bardoli, Gujarat. This decision was taken following the violent Chauri Chaura incident on 4th February 1922, where an angry mob set fire to a police station in the Gorakhpur district of Uttar Pradesh, leading to the tragic death of twenty-two policemen. Distressed by this outbreak of violence, which violated his core principle of ahimsa (non-violence), Gandhi decided to suspend the national movement.

Explanation

Milk is a colloid in which liquid fat globules are dispersed in water, making it a classic example of an oil-in-water emulsion. The dispersed phase consists of liquid lipids, while the dispersion medium is water. This colloidal system is stabilized by proteins, such as casein, which function as emulsifying agents to prevent the fat and water phases from separating.

Explanation

The relationship between the given pair is that of an instrument or medium to its intended outcome or resulting state. Medicine is the substance used to achieve the state of being cured. Similarly, a book is the medium used to achieve the state of being educated. In both cases, the first word represents the tool or agent, and the second word represents the positive condition that is attained through its use.

Explanation

Rabidas (Ravidas) was a prominent saint of the Bhakti movement who preached a universal message of love, equality, and the oneness of God, transcending caste and religious boundaries. His teachings resonated with people from various backgrounds, and he is known to have had disciples from both Hindu and Muslim communities due to his non-sectarian approach.

Explanation

Bal Gangadhar Tilak, a prominent leader of the Indian independence movement and social reformer, coined the iconic slogan Swaraj is my birthright and I shall have it. He advocated for complete self-rule (Swaraj) and used this powerful declaration to mobilize the masses against British colonial rule, infusing a spirit of nationalism and active resistance among the people of India.

Explanation

Orhan Pamuk, a prominent Turkish novelist, was awarded the Nobel Prize in Literature in 2006. The Swedish Academy recognized him as an author who, in the quest for the melancholic soul of his native city, has discovered new symbols for the clash and interlacing of cultures. His acclaimed novels, such as My Name Is Red and Snow, explore themes of identity, culture, and the relationship between East and West.

Explanation

In October 2006, researchers published a study in the Proceedings of the National Academy of Sciences (PNAS) detailing the emergence and predominance of a new, highly contagious H5N1 avian influenza variant (referred to as the Fujian-like strain) in southern China. This new strain became the dominant variant responsible for poultry outbreaks and human infections in the region.

Explanation

In humans, sex is determined by the sex chromosomes. A normal human somatic cell contains 23 pairs of chromosomes, comprising 22 pairs of autosomes and 1 pair of sex chromosomes. Normal human males possess one X chromosome and one Y chromosome (XY) as their sex chromosome pair. The Y chromosome contains the crucial SRY (Sex-determining Region Y) gene, which triggers the development of male physical characteristics and testes during embryonic development.

Explanation

In 1896, a severe famine struck the Bombay Presidency due to the failure of the Southwest monsoon. Working through the Poona Sarvajanik Sabha, Bal Gangadhar Tilak initiated a no-tax campaign in Maharashtra to support the affected peasantry. He translated the Famine Relief Code of 1883 into Marathi and distributed pamphlets to educate the farmers. Tilak exhorted the peasants to withhold land revenue payments if their crop yield was less than 25 percent of the average, highlighting that the colonial government was legally obligated to provide relief and tax suspensions under the Famine Code. This effort transformed agrarian distress into an organized nationalist agitation, marking an early instance of passive resistance in India.

Explanation

Let the required number be x. The problem states that adding 24 to 40% of x results in x.

This is represented by the algebraic equation: 0.40x + 24 = x

Subtracting 0.40x from both sides to group the variable terms gives: 0.60x = 24

Solving for x: x = (24)/(0.60) = 40

Explanation

The Kushana dynasty, under the ruler Vima Kadphises, introduced gold coins in India during the first century CE. These gold coins were minted in large quantities and possessed a high level of purity. The weight and standard of the Kushana gold coins were closely aligned with contemporary Roman gold coins, reflecting the thriving trade relations between the Kushana Empire and the Roman world.

Explanation

By the principle of inclusion-exclusion for two sets, the number of families that watch either Doordarshan (D) or Star TV (S) is given by the formula:

n(D ∪ S) = n(D) + n(S) - n(D ∩ S)

Substituting the given values into the formula:

n(D ∪ S) = 350 + 300 - 200 = 450

The total population consists of families that watch television plus the families that do not have TV sets:

Total Population = n(D ∪ S) + Families without TV

Total Population = 450 + 250 = 700

Explanation

The Justice Mukherjee Commission of Inquiry was appointed by the Government of India in 1999 to investigate the circumstances surrounding the disappearance and alleged death of Netaji Subhas Chandra Bose. Led by retired Supreme Court Judge Manoj Kumar Mukherjee, the commission travelled to various countries, including Japan, Russia, and Taiwan, to examine witnesses and search archives. The inquiry aimed to determine whether Netaji died in a plane crash in Taihoku in August 1945, and if not, to uncover his actual fate. The commission completed its probe and submitted its report to the government in November 2005.

Explanation

The Montagu-Chelmsford Reforms, which formed the basis of the Government of India Act 1919, introduced the system of dyarchy at the provincial level. This administrative setup divided provincial subjects into two categories: transferred and reserved. Transferred subjects, including education, public health, and local government, were administered by the Governor with the advice of ministers responsible to the Legislative Council. Reserved subjects, such as finance, police, and land revenue, remained under the direct control of the Governor and his executive council, who were not accountable to the legislature.

Explanation

Amir Khusrow, a legendary Sufi musician, poet, and scholar of the Delhi Sultanate, was affectionately called Tuti-e-Hind, which translates to the Parrot of Hindusthan. This title was bestowed upon him in recognition of his extraordinary eloquence, sweetness of language, and unparalleled contributions to Persian and Hindavi literature. He served in the royal courts of multiple rulers of the Delhi Sultanate and is also widely regarded as the father of Qawwali and Urdu literature.

Explanation

The Human Development Index (HDI) was introduced in 1990 by the United Nations Development Programme (UNDP). It was created by Pakistani economist Mahbub ul Haq, alongside Indian economist Amartya Sen, to emphasize that people and their capabilities should be the ultimate criteria for assessing the development of a country, rather than economic growth alone. The HDI made its debut in the first Human Development Report published by the UNDP in 1990, measuring national development across three basic dimensions: life expectancy at birth, educational attainment (mean and expected years of schooling), and gross national income per capita.

Explanation

The Bombay Millhands' Association, founded by Narayan Meghaji Lokhande in 1890, is widely regarded as the first labor association in India. Lokhande, a close associate of Jyotirao Phule and a member of the Satyashodhak Samaj, is hailed as the father of the trade union movement in India. He established this association to organize the textile mill workers of Bombay, successfully advocating for basic rights such as a weekly holiday on Sundays, a half-hour midday recess, and limited working hours.

Explanation

The National Bank for Agriculture and Rural Development (NABARD) was established on 12 July 1982 under the National Bank for Agriculture and Rural Development Act, 1981. It was set up on the recommendations of the B. Sivaraman Committee to provide and regulate credit and other facilities for the promotion and development of agriculture, small-scale industries, cottage and village industries, handicrafts, and other allied economic activities in rural areas.

Explanation

The coding pattern involves adding 1 to the alphabetical position of each letter in the word and then reversing the sequence of the resulting letters.

For the word TRAIN: T plus 1 letter is U R plus 1 letter is S A plus 1 letter is B I plus 1 letter is J N plus 1 letter is O Writing these letters in reverse order gives OJBSU.

Applying the same logic to the word BUS: B plus 1 letter is C U plus 1 letter is V S plus 1 letter is T Writing these letters in reverse order gives TVC.

Explanation

West Bengal has a three-tier Panchayati Raj system established under the West Bengal Panchayat Act, 1973. This structure consists of Gram Panchayats at the village level, Panchayat Samitis at the block level, and Zilla Parishads at the district level. Since each of the development blocks in the state has a corresponding Panchayat Samiti, there are 341 Panchayat Samitis in West Bengal.

Explanation

Ants are eusocial insects that exhibit highly developed caste polymorphism, where members of the same species and colony exist in physically distinct forms with specialized roles. These distinct morphs typically include reproductive queens, fertile males, and sterile female workers. Within the worker caste itself, there can be further polymorphic variations, such as smaller minor workers for foraging and larger major workers or soldiers with enlarged heads and strong mandibles for defense. This physical and functional differentiation within a single species, which is determined by a combination of genetic, nutritional, and environmental factors during larval development, represents a classic example of polymorphism.

Explanation

The given number series is formed by alternating squares and cubes of consecutive natural numbers starting from 2.

The pattern of the terms in the series is as follows: The first term is 2² = 4 The second term is 2³ = 8 The third term is 3² = 9 The fourth term is 3³ = 27 The fifth term is 4² = 16 The sixth term is 4³ = 64 The seventh term is 5² = 25

Following this established sequence of n² followed by n³ for each successive integer n, the next term in the series must be 5³, which equals 125.

Explanation

Jeev Milkha Singh won the 2006 Volvo Masters of Europe Golf tournament, defeating Sergio Garcia in a playoff. This was a significant victory for Indian golf on the European Tour.

Explanation

Under the three-tier Panchayati Raj system established by the 73rd Constitutional Amendment Act, 1992, the Panchayat Samiti is the intermediate tier operating at the block level. It serves as a vital coordinating body, linking the village-level administration with the district-level administration to implement various developmental programs, agricultural initiatives, and social welfare schemes within the block.

Explanation

Aurangzeb was known as Zinda Pir or the Living Saint because of his highly disciplined, simple, and austere lifestyle. He strictly adhered to the tenets of Islamic law and did not use the royal treasury for his personal expenses. Instead, he earned his personal livelihood by sewing caps and copying the Quran. His devotion to the principles of Sunni Islam and his pious personal conduct earned him this title among his Sunni subjects.

Explanation

Food grains, comprising cereals and pulses, form the backbone of Indian agriculture and occupy approximately 65 percent of the total cropped area of the country. This significant share highlights the subsistence nature of Indian farming, where a major portion of the cultivated land is dedicated to meeting the primary food security needs of the population.

Explanation

Phytoplankton are microscopic, single-celled photosynthetic organisms found in aquatic environments. They contain chlorophyll, which allows them to capture sunlight and convert carbon dioxide and water into organic compounds through photosynthesis. In a pond ecosystem, phytoplankton act as the primary producers, forming the fundamental base of the aquatic food web by synthesizing chemical energy that sustains the subsequent trophic levels.

Explanation

Cauliflower Mosaic virus is a member of the genus Caulimovirus and primarily infects plants belonging to the family Brassicaceae, which includes cruciferous vegetables such as cauliflower, broccoli, cabbage, and turnip. The virus causes systemic infections in these vegetable crops, leading to characteristic symptoms like leaf mosaic, vein clearing, chlorosis, and stunted growth, which severely impact the yield and quality of the vegetables.

Explanation

The Constituent Assembly of India held its inaugural meeting on December 9, 1946. Over the course of nearly three years, the assembly conducted intense discussions, committee reviews, and debates to draft the foundational document of independent India. The process of deliberation culminated on November 26, 1949, when the Assembly adopted, enacted, and gave to themselves the Constitution of India.

Explanation

The Akbarnama, which translates to the Book of Akbar, is the official chronicle of the reign of the Mughal Emperor Akbar. It was commissioned by Akbar himself and written in Persian by his court historian and biographer, Abul Fazl. Abul Fazl was one of the Nine Jewels of Akbar's court. The work provides a detailed and comprehensive account of Akbar's life, ancestry, administration, and the socio-economic conditions of the empire during his reign, divided into three volumes, with the third volume being the Ain-i-Akbari.

Explanation

Sultan Zainul Abedin, who ruled Kashmir from 1420 to 1470, is known as the Akbar of Kashmir due to his policy of religious tolerance, patronage of Sanskrit and Persian literature, and welfare-oriented administration. He abolished the jizya tax on non-Muslims, banned cow slaughter, and allowed Hindus who had fled during earlier persecution to return to Kashmir, mirroring the inclusive policies of the Mughal Emperor Akbar.

Explanation

An element acts exclusively as a reducing agent when it is present in its lowest possible oxidation state, meaning it cannot gain any more electrons and can only undergo oxidation. In hydrogen sulfide (H₂S), the oxidation state of sulfur is -2, which is the minimum possible oxidation state for sulfur. Because sulfur cannot be reduced to any lower oxidation state, H₂S can only lose electrons and undergo oxidation, making it act solely as a reducing agent.

Explanation

The Directive Principles of State Policy, contained in Part IV of the Indian Constitution from Article 36 to 51, are borrowed from the Constitution of Ireland of 1937. These principles serve as guidelines for the government to frame laws and policies aimed at securing a social order based on justice, liberty, equality, and fraternity.

Explanation

Sporopollenin is an extremely chemically inert and resistant biological polymer that forms the major component of the outer wall (exine) of plant spores and pollen grains. Chemical and biochemical studies established that sporopollenin is formed through the oxidative polymerization of carotenoids and carotenoid esters, structurally behaving as a co-polymer of carotenoids and fatty acids. This highly cross-linked lipid-like nature provides sporopollenin with extraordinary stability and resistance to thermal degradation, enzymatic attack, and strong chemical reagents.

Explanation

The Archaean rock system of India includes the Nilgiri gneiss, which is popularly recognized as belonging to the Charnockite series. Named in honor of Job Charnock, whose tombstone was constructed from this dark-colored plutonic rock, Nilgiri gneiss is a bluish-grey to dark, medium to coarse-grained hypersthene-bearing granulite found extensively in the Nilgiri Hills and other parts of southern India.

Explanation

Ikhtiyar-uddin Muhammad bin Bakhtiyar Khilji, a military commander of the Ghurid Empire and later of the Delhi Sultanate, conquered Bengal at the beginning of the thirteenth century. Around 1203 to 1204 AD, he launched a surprise attack on Nadia, the capital of Bengal's Sena dynasty, with a small force of cavalry. The Sena ruler, Lakshmana Sena, was caught off guard and fled, allowing Bakhtiyar Khilji to capture Nadia and establish Muslim rule in the region, setting up Lakhnauti as his capital.

Explanation

Western disturbances are extra-tropical storms originating in the Mediterranean region that bring sudden winter rain and snow to the northwestern parts of the Indian subcontinent. Driven by the westerly jet streams, these low-pressure systems travel eastward across West Asia and enter India, causing crucial precipitation during the cold weather season which is highly beneficial for Rabi crops like wheat.

Explanation

During the economic planning era in India, which began in 1951, the services sector experienced the most rapid and sustained expansion among all economic sectors. While agriculture was the dominant contributor to India's Gross Domestic Product at the beginning of the plan period, its growth rate remained comparatively low. Although the industrial sector witnessed significant investment during early five-year plans, it was the services sector that experienced a major growth surge, particularly after the economic reforms of 1991. Driven by advancements in information technology, telecommunications, banking, insurance, and business services, the services sector consistently grew at double-digit or high single-digit rates during the later five-year plans, making it the fastest-expanding sector and the primary contributor to India's GDP.

Explanation

According to Article 75(2) of the Constitution of India, the Union Ministers hold office during the pleasure of the President. The President appoints the Prime Minister, and other Ministers are appointed by the President on the advice of the Prime Minister. Consequently, the legal authority to dismiss a Minister rests with the President, acting on the advice of the Prime Minister, which establishes that Ministers serve at the pleasure of the President.

Explanation

The age relationships can be represented mathematically by ordering the individuals from youngest to oldest.

From the first statement, Bhuban is younger than both Tarak and Ram, which gives: Bhuban < Tarak Bhuban < Ram

From the second statement, Jit is younger than Tarak but older than Ram, which gives: Ram < Jit < Tarak

Combining these inequalities results in a single, definite linear order from youngest to oldest: Bhuban < Ram < Jit < Tarak

This sequence clearly identifies Bhuban as the youngest, Ram as the second youngest, Jit as the third youngest, and Tarak as the oldest. Therefore, the statement that Ram is the second youngest among them is definitely true.

Explanation

Electric current in a metallic conductor is defined as the rate of flow of electric charge. In metals, the atoms are arranged in a crystalline lattice where the outermost valence electrons are loosely bound to their parent atoms. These electrons easily detach and form a sea of free electrons that are free to move throughout the volume of the metal. When an external electric field is applied across the metallic wire by connecting it to a source of potential difference, these free electrons experience an electrostatic force and begin to drift systematically through the lattice of metal ions. This directed movement of free electrons is what constitutes the electric current in a metallic wire.

Explanation

Kanshi Ram, the founder of the Bahujan Samaj Party (BSP), was the political mentor of Mayawati. He recognized her oratorical skills and leadership potential in the late 1970s, subsequently grooming her to become a key leader of the party and his official successor to lead the BSP. Under his mentorship, she went on to serve as the Chief Minister of Uttar Pradesh multiple times.

Explanation

Maharashtra has historically been the most industrially advanced state in India, contributing the largest share to the national Gross Domestic Product and manufacturing output. The state accounts for a significant portion of India's total industrial production, value added in the organized manufacturing sector, and employment. This dominance is driven by robust infrastructure, the presence of major industrial clusters in regions like Mumbai, Pune, Thane, and Nashik, and its status as the financial capital of the country, which facilitates substantial domestic and foreign direct investment.

Explanation

The Forest Research Institute (FRI) is located in Dehradun, Uttarakhand. Established in 1906 as the Imperial Forest Research Institute, it is a premier institution under the Indian Council of Forestry Research and Education (ICFRE) dedicated to research, education, and training in forestry. In 1991, it was declared a deemed university by the University Grants Commission.

Explanation

According to the Census of 2001, which was the latest available census data in 2007, Uttar Dinajpur recorded the lowest female literacy rate in West Bengal at 36.51%. The district also had the lowest overall literacy rate in the state at 47.89%.

Explanation

Let C be the wife of B. Since B is a man and C is a woman, B's father is the father-in-law of C.

If A is the brother of C, they share the same father. Since C is married to B, their father (who is A's father) is the father-in-law of B. This completely satisfies the condition that A's father is the father-in-law of B.

Explanation

Guru Gobind Singh, the tenth and last human Sikh Guru, created the Khalsa panth in 1699 on the day of Baisakhi. The creation of the Khalsa institutionalized the concept of Sant-Sipahi (saint-soldier) within the community. He introduced a strict code of conduct and mandated the five symbols of faith (the five Ks), which included the carrying of a kirpan (sword). This militarization reorganized the Sikh community into a disciplined, self-defending brotherhood capable of fighting against oppression, thereby transforming them into a martial race.

Explanation

The Food Corporation of India was established on 14 January 1965 under the Food Corporations Act, 1964. It was set up in the backdrop of severe grain shortages to ensure food security across India. Its mandate includes implementing effective price support operations to safeguard the interests of farmers, distributing food grains throughout the country for the public distribution system, and maintaining a satisfactory level of operational and buffer stocks of food grains. The corporation initially began its operations with its first district office in Thanjavur, Tamil Nadu.

Explanation

Rashbehari Bose was a pioneering Indian revolutionary who fled to Japan in 1915, where he worked extensively to gather international support for India's freedom struggle. In 1942, he established the Indian Independence League and played a central role in organizing the first Indian National Army (Azad Hind Fauj) outside India, utilizing Indian prisoners of war captured by the Japanese. He subsequently handed over the leadership of both the army and the league to Subhas Chandra Bose in 1943.

Explanation

The International Indian Film Academy (IIFA) Award for Best Film in 2005 was won by the epic romantic drama Veer-Zaara. Directed by Yash Chopra, the film was a major critical and box-office success and received the top prize at the 6th IIFA Awards ceremony held in Ghent, Belgium in June 2005.

Explanation

The concept of the National Capital Region was first formally conceptualized and approved as part of the first Master Plan for Delhi in 1962. This plan defined a larger planning region surrounding Delhi—encompassing parts of Haryana, Uttar Pradesh, and Rajasthan—and recommended the coordinated development of ring towns to absorb demographic pressures and prevent haphazard growth in the capital region.

Explanation

At the time of partition and independence in 1947, there were 562 princely states officially recognized under British suzerainty in India. These states, which existed outside direct British administration, were given the choice to join either India or Pakistan, or to remain independent. Through the diplomatic skill, persuasion, and firm statesmanship of Sardar Vallabhbhai Patel and V.P. Menon, these 562 princely states were successfully integrated into the Indian Union.

Explanation

The rainfall pattern in India is predominantly controlled by the monsoon wind system, which is highly seasonal in nature. Approximately 75% to 90% of the country's total annual precipitation is concentrated within the four months of the southwest monsoon season, spanning from June to September. This extreme temporal concentration makes seasonability the most defining and influential characteristic of Indian rainfall, directly determining the agricultural calendar and water resource replenishment across the subcontinent.

Explanation

The Reserve Bank of India was established on April 1, 1935, in accordance with the provisions of the Reserve Bank of India Act, 1934. The central bank was set up based on the recommendations of the Hilton Young Commission, also known as the Royal Commission on Indian Currency and Finance, to regulate the issue of banknotes, keep reserves to secure monetary stability, and operate the currency and credit system of the country to its advantage.

Explanation

The first session of the Indian National Congress was held in Bombay from 28 to 31 December 1885 at the Gokuldas Tejpal Sanskrit College. Womesh Chandra Bonnerjee, a distinguished barrister from Calcutta, presided over this historic inaugural assembly. The session was attended by seventy-two delegates representing various regions of India, establishing the foundation of the Indian national movement.

Explanation

The density of water is defined as mass per unit volume, represented by the formula ρ = m/V. Water exhibits anomalous expansion, meaning its volume decreases and its density increases as it is cooled from room temperature down to 4°C. At 4°C, water reaches its maximum density of approximately 1 g/cm³. Therefore, at this specific temperature, a volume of 1 cm³ of pure water has a mass of exactly 1 gm.

Explanation

The Drafting Committee was set up by the Constituent Assembly on August 29, 1947, to prepare a draft Constitution for independent India. Dr. B. R. Ambedkar was appointed as the Chairperson of this seven-member committee. Under his expert guidance and leadership, the committee meticulously scrutinized, revised, and formulated the various clauses of the draft, which was eventually adopted on November 26, 1949. His instrumental role in shaping the foundational legal document of India earned him the title of the Father of the Indian Constitution.

Explanation

Ban Ki-moon, a diplomat and politician from South Korea, assumed office as the eighth Secretary-General of the United Nations on January 1, 2007. He succeeded Kofi Annan of Ghana and went on to serve two consecutive terms in this role until December 31, 2016.

Explanation

Based on the given clues, English is placed above Arithmetic, and Arithmetic is placed above Biology. Since Biology is placed above Commerce, and Commerce is placed above Drawing, we can establish the complete top-to-bottom sequence of the books. The resulting order from top to bottom is English, Arithmetic, Biology, Commerce, and Drawing. In this pile of five books, Biology lies exactly in the middle of the stack, making it the book in the centre.

Explanation

Steve Irwin was an internationally renowned Australian wildlife conservationist, zookeeper, and television personality. He achieved global fame as the host of the highly popular wildlife documentary television series titled The Crocodile Hunter, which began broadcasting in 1996. Alongside his wife Terri, Irwin co-managed the Australia Zoo and used his prominent public profile to promote environmentalism and wildlife conservation worldwide, particularly focusing on the protection of crocodiles and other reptiles.

Explanation

The Annual Meeting of the World Economic Forum in 2006 was held from January 25 to 29 in Davos, Switzerland. Davos serves as the traditional venue for the annual meeting of the forum, bringing together global political leaders, business executives, academics, and journalists to address urgent global economic and social issues.

Explanation

To find the code for the word are, we compare the given coded sentences.

First, compare the sentence books are old coded as 253 with man is old coded as 546. The common word is old and the common digit is 5, which means the code for old is 5.

Next, compare books are old coded as 253 with buy good books coded as 378. The common word is books and the common digit is 3, which means the code for books is 3.

In the first sentence books are old (coded as 253), the remaining word is are and the remaining digit is 2. Therefore, the code for are is 2.

Explanation

The Muzaffarpur conspiracy occurred on April 30, 1908, when revolutionary nationalists Prafulla Chaki and Khudiram Bose threw a bomb at a carriage in Muzaffarpur. Their intended target was Douglas Kingsford, the Chief Presidency Magistrate of Calcutta, who had acquired notoriety for passing highly cruel and harsh sentences on young nationalist workers and publications. However, Kingsford was not in the carriage, and the explosion tragically killed the wife and daughter of local barrister Pringle Kennedy. Following the incident, Prafulla Chaki shot himself to avoid arrest at the Mokama Ghat railway station, while Khudiram Bose was captured by the police, tried, and subsequently executed by hanging on August 11, 1908, becoming one of the youngest martyrs of the Indian independence movement.

Explanation

The Lahore Session of the Indian National Congress, held in December 1929 under the presidency of Jawaharlal Nehru, passed the historic resolution of Purna Swaraj, which means complete independence. This marked a monumental shift in the nationalist movement, as the Congress officially abandoned the demand for dominion status or self-government within the British Empire, declaring instead that complete independence from British rule was its ultimate goal.

Explanation

The Swarajya Party, formed in January 1923 by Chittaranjan Das and Motilal Nehru, sought a change in the strategy of the national movement after the suspension of the Non-Cooperation Movement. Their primary objective was to contest the elections to the Legislative Councils established under the Government of India Act 1919. By entering these councils, they intended to adopt a policy of uniform, continuous, and consistent obstruction to wreck the working of the reforms from within, expose the autocratic nature of the British administration, and prevent the government from passing unpopular laws.

Explanation

Guru Tegh Bahadur was the ninth Sikh Guru who was executed in Delhi in 1675 on the orders of the Mughal Emperor Aurangzeb. Guru Tegh Bahadur actively resisted the forced conversions of Kashmiri Pandits and others to Islam, advocating for religious freedom. When he refused to convert to Islam himself, Aurangzeb ordered his public execution at Chandni Chowk in Delhi. The site of his martyrdom is commemorated by the historic Gurdwara Sis Ganj Sahib.

Explanation

The Lambert Conical Orthomorphic projection, also known as the Lambert Conformal Conic projection, is ideal for representing the map of India because of its conformal properties, which preserve local shapes, angles, and directions accurately. Since the Indian subcontinent is situated primarily in the mid-latitudes of the Northern Hemisphere and features a wide east-west longitudinal extent, a conic projection utilizing standard parallels minimizes scale distortion over the region. Consequently, this projection is standard for national mapping, regional topographical sheets, and aeronautical charts of India where shape and direction fidelity are paramount.

Explanation

Subhas Chandra Bose adopted and popularized the patriotic slogan Jai Hind, meaning Victory to India, during the Indian freedom struggle. It was used as a standard salutation and battle cry for the soldiers of the Indian National Army, also known as the Azad Hind Fauj, which Bose led in the 1940s to fight against British rule. The slogan successfully bridged religious and regional divides, fostering a strong sense of national unity among the freedom fighters.

Explanation

Newton's second law of motion states that the force applied to an body is directly proportional to the rate of change of its momentum, which is mathematically represented as F = (dp)/(dt). Momentum is the product of mass and velocity (p = mv). Since the loaded truck has a significantly greater mass than the empty truck while moving at the same velocity, it possesses a much higher momentum. To bring both trucks to a complete stop, their momentum must be reduced to zero. Because the loaded truck undergoes a much larger change in momentum, a greater retarding force is required to stop it in the same amount of time, directly validating the relationship defined by Newton's second law of motion.

Explanation

Iltutmish is regarded as the first real king or founder of the Delhi Sultanate because he consolidated the Turkish conquests in India and established an independent sovereign state. He made Delhi his capital and received a formal letter of investiture (Manshur) from the Abbasid Caliph of Baghdad in 1229 AD, which legally consolidated his status as an independent sovereign ruler. He also introduced a sound administrative structure, organized the ruling elite known as the Turkan-i-Chahalgani, and established the standard currency system consisting of the silver Tanka and copper Jital.

Explanation

West Bengal was divided into 19 administrative districts following the bifurcation of the erstwhile Midnapore district into Purba Medinipur and Paschim Medinipur on January 1, 2002. This administrative reorganization increased the total district count of the state from 18 to 19. This 19-district setup remained the standard administrative structure of West Bengal throughout 2007, prior to further bifurcations that began in 2014.