SSC CGL Tier 1 2022 General Awareness Questions with Solutions

Explanation

In the 1960 Rome Olympics, India did not win a gold medal. The Indian men's field hockey team reached the final match but was defeated by Pakistan with a score of 1-0, resulting in a silver medal finish. Since no other Indian participants secured a first-place finish in any other sporting discipline during these Games, India concluded the 1960 Olympics without any gold medals.

Explanation

The Second Five-Year Plan, which spanned from 1956 to 1961, was based on the P.C. Mahalanobis Model. This model shifted the economic focus toward rapid industrialization, specifically targeting the development of heavy and basic industries. The underlying strategy was to build a strong industrial foundation by investing in the public sector to produce capital goods, which were seen as essential for long-term economic self-reliance. Significant investments were made in steel plants, such as those at Bhilai, Durgapur, and Rourkela, as well as in coal and railway sectors to support this industrial push. The plan aimed for a 25 percent increase in national income through this intensive focus on the industrial sector.

Explanation

Ustad Zakir Hussain, the legendary tabla maestro, won the Grammy Award for Best Contemporary World Music Album at the 51st Annual Grammy Awards in 2009 for the album Global Drum Project. This collaborative project featured Zakir Hussain alongside Mickey Hart, Sikiru Adepoju, and Giovanni Hidalgo. The album was a successor to their earlier 1991 collaboration, Planet Drum, which had previously won the first-ever Grammy in the Best World Music Album category. Zakir Hussain's win for Global Drum Project marked a significant milestone in his career, highlighting his role as a premier global ambassador for Indian classical music and a pioneer in international rhythmic fusion.

Explanation

Senior advocate R. Venkataramani was appointed as the Attorney General of India by President Droupadi Murmu in September 2022 for a period of three years. He succeeded K.K. Venugopal to become the 16th Attorney General of the country. According to Article 76 of the Constitution of India, the Attorney General is appointed by the President and must be a person qualified to be appointed as a Judge of the Supreme Court. As the highest law officer in the country, the Attorney General is responsible for giving advice to the Government of India upon legal matters and performing other duties of a legal character as may be referred or assigned by the President. R. Venkataramani has extensive experience in the legal field, having practiced in the Supreme Court for several decades and served as a member of the Law Commission of India.

Explanation

Transpiration is the biological process by which water is lost in the form of water vapor from the aerial parts of a plant, primarily through the leaves. This process occurs through specialized microscopic pores called stomata, which are predominantly located on the underside of the leaf epidermis. When stomata open to facilitate the intake of carbon dioxide for photosynthesis, water vapor present in the intercellular spaces of the leaf mesophyll diffuses out into the atmosphere. Stomatal transpiration accounts for the vast majority of total water loss in plants, typically ranging from 90 to 95 percent, and plays a crucial role in nutrient transport and cooling the plant through evaporative effects.

Explanation

Yamini Krishnamurthy is a distinguished practitioner of Bharatanatyam and Kuchipudi who was appointed as the Asthana Nartaki (resident dancer) of the Tirumala Tirupati Devasthanams. This title recognized her lifelong dedication to the classical arts and her role in popularizing Indian dance on global platforms. Over her illustrious career, she has been conferred with several of India's highest civilian honors, including the Padma Shri, Padma Bhushan, and Padma Vibhushan. Her work is characterized by a deep technical precision and expressive storytelling that helped define the post-independence era of Indian classical dance.

Explanation

Manimekalai is one of the five great epics of Tamil literature, composed by the poet Chithalai Chathanar. It serves as a sequel to the epic Silappatikaram and chronicles the life of the protagonist, Manimekalai, who is the daughter of the merchant Kovalan and the dancer Madhavi. The narrative details her journey as she chooses to renounce worldly life and follow the path of Buddhism, eventually becoming a Buddhist nun. The work is significant for its ethical teachings and its detailed presentation of Buddhist philosophy and logic in the context of ancient South Indian society.

Explanation

James Mill, a Scottish economist and political philosopher, published his monumental three-volume work, A History of British India, in 1817. In this influential text, Mill categorized Indian history into three distinct periods: Hindu, Muslim, and British. He viewed Indian civilization as being at a lower stage of development compared to Europe and argued that British intervention was essential to modernize and civilize the subcontinent through the implementation of Western laws, education, and administrative practices. His work served as a primary reference and training manual for British officials of the East India Company before they departed for service in India.

Explanation

Lezim is a traditional folk dance from the state of Maharashtra, primarily performed during the Ganesha festival and other significant socio-religious celebrations. The dance takes its name from the lezim instrument, which consists of a wooden stick fitted with an iron chain that holds jingling metal discs. Performers execute rhythmic, high-energy movements and formations, striking the lezim in unison to the beats of the Dhol and Tasha. Beyond its cultural and festive significance, the dance is also practiced as a form of physical exercise in many educational institutions across Maharashtra because of its vigorous and synchronized nature.

Explanation

The 11ᵗʰ Fundamental Duty was incorporated into the Indian Constitution via the 86ᵗʰ Constitutional Amendment Act, 2002. This amendment added clause (k) to Article 51A, which stipulates that it is the duty of every citizen who is a parent or guardian to provide opportunities for education to his child or, as the case may be, ward between the age of six and fourteen years. This addition was part of a broader educational reform in 2002 that also established the Right to Education as a Fundamental Right under Article 21A and modified the Directive Principles of State Policy under Article 45.

Explanation

The second session of the Indian National Congress was held in Calcutta in 1886, presided over by Dadabhai Naoroji, and was attended by 434 delegates. Options B, C, and D are irrelevant terms that do not provide a numerical answer to the question.

Explanation

Tele-MANAS stands for Tele Mental Health Assistance and Networking Across States. Launched by the Union Ministry of Health and Family Welfare on October 10, 2022, to mark World Mental Health Day, the initiative aims to provide 24/7 mental health care services to people across India. The programme was first announced in the Union Budget 2022-23 as the National Tele Mental Health Programme to address the increased mental health crisis following the COVID-19 pandemic. It operates through a network of 23 tele-mental health centres of excellence, with the National Institute of Mental Health and Neurosciences (NIMHANS) serving as the nodal centre and the International Institute of Information Technology-Bangalore (IIITB) providing technical support.

Explanation

The Nupa dance, also known as Nupa Pala or Kartal Cholom, is a traditional performance art from the state of Manipur. It is primarily performed by male dancers who wear distinctive white dhotis and large white turbans. This dance form is an integral part of the Manipuri Vaishnavite tradition and often serves as a rhythmic prelude to the classical Ras Lila. The performers play large cymbals called kartals while singing devotional songs and executing synchronized movements that range from soft and graceful to vigorous and acrobatic. The dance reflects the unique cultural and religious heritage of the Meitei people, emphasizing devotional themes centered around Lord Krishna.

Explanation

The Muppandal wind farm, situated in the Kanyakumari district of Tamil Nadu, represents the largest wind power cluster in India. This project leverages the high-velocity winds channeled through the Aralvaimozhi pass in the Western Ghats, which provides an ideal geographic location for large-scale wind energy generation. With a total installed capacity reaching approximately 1,500 MW, it is one of the largest operational onshore wind farms in the world. The cluster comprises thousands of individual wind turbines that contribute a substantial portion of India's total wind power capacity, solidifying Tamil Nadu's status as a leader in the country's renewable energy sector.

Explanation

The Son river is a major southern tributary of the Ganga that originates from the Amarkantak plateau in the Maikala range of Madhya Pradesh. It flows in a north-northeasterly direction through the states of Chhattisgarh, Uttar Pradesh, and Bihar, eventually joining the Ganga river near Patna. Because the Ganga flows generally eastward and the Son joins it from the southern side, it is geographically classified as a right bank tributary. It is the second-largest southern tributary of the Ganga after the Yamuna.

Explanation

Lohri is a prominent harvest festival of North India, celebrated primarily in the Punjab region. It marks the end of the winter solstice and the arrival of longer days, traditionally occurring a day before Makar Sankranti. The festival is characterized by the lighting of ceremonial bonfires, singing of folk songs, and performing traditional dances such as Bhangra and Giddha. Because its cultural and historical origins are tied to the agrarian traditions of the Punjabi people in the plains, it is not an indigenous or traditionally celebrated festival in the Himalayan state of Sikkim.

Explanation

Trypsin is a vital proteolytic enzyme, or protease, produced by the pancreas in an inactive precursor form known as trypsinogen. It is secreted into the duodenum of the small intestine, where it is activated by the enzyme enteropeptidase. The primary function of active trypsin is to facilitate the digestion of dietary proteins by catalyzing the hydrolysis of peptide bonds. It specifically targets and cleaves peptide chains at the carboxyl side of the amino acids lysine and arginine. This biochemical action breaks down complex protein molecules into smaller peptide fragments, which are then further processed by other enzymes into amino acids for absorption. By initiating this breakdown, trypsin plays a central role in the assimilation of nitrogenous nutrients required for various bodily functions.

Explanation

Article 248 of the Constitution of India explicitly vests the residuary powers of legislation in the Union Parliament. This means that the Union legislature has the exclusive power to make any law with respect to any matter that is not enumerated in the Concurrent List or the State List. This authority is further reinforced by Entry 97 of the Union List in the Seventh Schedule, which grants the Union the power to legislate on any other matter not included in List II or List III, including the imposition of any tax not mentioned in those lists. This constitutional arrangement ensures that the central government maintains the authority to address emerging or unforeseen subjects that were not specifically categorized during the drafting of the Constitution.

Explanation

The Repo rate, or Repurchase Option rate, is the key policy interest rate at which the Reserve Bank of India lends money to commercial banks for short-term periods, typically overnight, against the collateral of government securities. It serves as the primary tool under the Liquidity Adjustment Facility (LAF) to manage the money supply and liquidity in the banking system. When banks face a shortage of funds, they borrow from the central bank at this rate, which in turn influences the interest rates across the entire economy.

Explanation

India is the largest producer of jute in the world, accounting for a significant portion of global output. The cultivation of jute, often referred to as the golden fiber, is concentrated in the eastern states of West Bengal, Bihar, and Assam. These regions offer the ideal environmental conditions required for the crop, including fertile alluvial soil, a tropical climate with temperatures ranging between 24 and 38 degrees Celsius, and high annual rainfall exceeding 150 cm. Data from the Food and Agriculture Organization (FAO) consistently identifies India as the top producer, leveraging the vast agricultural land in the Ganges-Brahmaputra delta to lead the international market in both raw jute production and the manufacturing of jute goods.

Explanation

Thanjavur served as the capital of the Imperial Chola dynasty starting in the 9th century. The city was captured by Vijayalaya Chola, the founder of the medieval Chola Empire, who defeated the Muttarayar chiefs around 850 CE. It became a major center of administration, culture, and religion for the dynasty. The city's prominence reached its peak during the reign of Rajaraja Chola I, who commissioned the Brihadisvara Temple, also known as the Big Temple. This architectural masterpiece is a UNESCO World Heritage site and symbolizes the power and artistic achievements of the Chola rulers. Thanjavur remained a vital strategic and political hub for the empire as they expanded their influence across South India and parts of Southeast Asia.

Explanation

In biological organization, a tissue represents a group of cells that possess a common origin and are similar in structure and function. These cells work together as a unit to perform specific physiological tasks within a multicellular organism. Tissues form the intermediate level of hierarchy between individual cells and complete organs, facilitating specialized activities such as contraction in muscle tissue or signal transmission in nervous tissue.

Explanation

John Newlands proposed the Law of Octaves in 1864, noting that when chemical elements are arranged in increasing order of their atomic masses, the properties of every eighth element are a repetition of the properties of the first element. He drew a direct parallel between this periodicity and the musical scale, where the eighth note is an octave higher but possesses the same character as the first note, similar to the do-re-mi-fa-sol-la-ti-do sequence or the Indian musical notes sa-re-ga-ma-pa-dha-ni-sa. This was the first time that elements were grouped based on a repeating pattern of properties related to their atomic weight.

Explanation

The Rural Landless Labour Employment Guarantee Programme (RLEGP) was launched on August 15, 1983, which falls within the timeline of the Sixth Five-Year Plan (1980–1985). This program was introduced as a 100 percent centrally funded scheme with the specific objective of providing guaranteed employment for at least 100 days in a year to at least one member of every landless labor household. Beyond employment generation, the scheme aimed at creating durable community assets to strengthen the rural infrastructure. In April 1989, RLEGP was merged with the National Rural Employment Programme (NREP) to form the Jawahar Rozgar Yojana (JRY).

Explanation

Aryabhatiyam is a seminal Sanskrit astronomical treatise written by the legendary Indian mathematician and astronomer Aryabhata in 499 CE. Composed when he was just 23 years old, the work is organized into four sections: Gitikapada, Ganitapada, Kalakriyapada, and Golapada. It covers a vast array of topics including arithmetic, algebra, plane and spherical trigonometry, and the determination of planetary positions. In this text, Aryabhata pioneered several mathematical concepts, such as a highly accurate approximation of the value of π as 3.1416 and the table of sines. He also proposed that the Earth rotates on its axis and provided scientific explanations for solar and lunar eclipses based on the shadows cast by the Earth and the Moon. The work remains a foundational pillar of the classical age of Indian mathematics.

Explanation

Rohtak is historically classified as a peripheral or secondary site of the 1857 uprising rather than a main centre. Major centres of the revolt were characterized by the presence of prominent leadership and organized military resistance that posed a significant challenge to the British East India Company. While the Haryana region, including Rohtak, experienced localized disturbances and civilian participation, it lacked the strategic significance, sustained military organization, and symbolic political leadership found in the primary urban hubs of the rebellion. Consequently, standard historical records and educational texts identify Rohtak as a region influenced by the mutiny rather than one of its primary epicenters.

Explanation

The Mahanadi is the most prominent river basin in Odisha, covering nearly half of the state's geographical area. It originates in the Highlands of Chhattisgarh and flows through the heart of Odisha, making it the state's largest and most vital river system. The river is essential for Odisha's economy and ecology, supporting extensive irrigation networks and the massive Hirakud Dam project. Its vast drainage area within the state ensures that it remains the primary source of water for agriculture and industrial activities. The Mahanadi terminates its journey by creating a large deltaic region along the Odisha coast before merging into the Bay of Bengal.

Explanation

Samvidhan Divas, also known as National Law Day or Constitution Day, is celebrated every year on 26th November to commemorate the adoption of the Constitution of India. On this date in 1949, the Constituent Assembly of India formally adopted the Constitution, which later came into force on 26th January 1950. The Government of India decided to celebrate this day starting in 2015 to mark the 125th birth anniversary of Dr. B.R. Ambedkar, the chairman of the Drafting Committee and the chief architect of the Indian Constitution. The celebration aims to promote constitutional values among citizens and honor the contribution of the founding fathers of the nation.

Explanation

The Commonwealth Youth Games were inaugurated in 2000 to provide a high-level multi-sport competition for athletes aged 14 to 18 from across the Commonwealth nations. The first edition of this event was hosted by Edinburgh, Scotland, from August 10 to August 14, 2000. It featured approximately 733 athletes from 14 countries competing in eight different sports: athletics, fencing, gymnastics, hockey, lawn bowls, netball, squash, and weightlifting. The event was designed to act as a bridge for young athletes toward the main Commonwealth Games and to promote cultural exchange.

Explanation

The backstroke is the only competitive swimming stroke where athletes start the race while already in the water rather than diving from the starting blocks. According to international swimming regulations, competitors must line up in the water facing the starting end with their hands placed on the starting grips. At the starting signal, they push off from the wall and remain on their backs for the duration of the race, except when performing turns. This specific starting procedure is designed to accommodate the unique orientation of the stroke and ensures that swimmers begin the race in the correct position for backstroke propulsion.

Explanation

Gypsum is a soft sulfate mineral chemically known as calcium sulfate dihydrate. Its chemical formula is CaSO₄ · 2H₂O, indicating that for every molecule of calcium sulfate, there are two molecules of water of crystallization integrated into the crystal lattice. It is widely used in construction, agriculture, and as the primary precursor for Plaster of Paris. When gypsum is heated to approximately 373 K, it loses three-fourths of its water content to become calcium sulfate hemihydrate (CaSO₄ · ½H₂O). The specific arrangement of calcium, sulfur, oxygen, and water molecules in the CaSO₄ · 2H₂O structure provides the mineral with its characteristic physical properties, such as its relative softness and specific gravity.

Explanation

Gulf Oil Lubricants India signed Indian women's cricket star Smriti Mandhana as its brand ambassador in October 2022. She joined the ranks of existing ambassadors Mahendra Singh Dhoni and Hardik Pandya to represent the company's range of lubricants and products. This appointment was significant as Mandhana became the first female athlete to represent the brand in India, aligning with the company's objective to recognize the growing influence of women in sports and reach a broader consumer base through her mass appeal and successful cricketing career.

Explanation

Velocity is a vector quantity, meaning it is defined by both its magnitude (speed) and its direction. When an object moves along a circular path, its direction of travel changes continuously at every point along the trajectory. Because acceleration is defined as the rate of change of velocity, a change in direction constitutes a change in velocity, even if the speed remains constant. This change in direction necessitates the presence of centripetal acceleration, which acts perpendicular to the velocity and is directed toward the center of the circle. This acceleration is expressed by the formula a = (v²)/(r), where v represents the tangential speed and r is the radius of the path. Therefore, circular motion is always a form of accelerated motion.

Explanation

According to Article 109 of the Constitution of India, a Money Bill can only be introduced in the Lok Sabha and cannot be initiated in the Rajya Sabha. As defined under Article 110, a Money Bill deals with specific financial matters such as the imposition or regulation of taxes, government borrowing, and the appropriation of money from the Consolidated Fund of India. Such bills can only be introduced on the prior recommendation of the President. Once the Lok Sabha passes the bill, it is sent to the Rajya Sabha, which has limited powers and must return the bill within 14 days; the Lok Sabha is not bound by any recommendations made by the Upper House in this regard.

Explanation

The Indian Council of Agricultural Research (ICAR) is an autonomous organization under the Department of Agricultural Research and Education (DARE), Ministry of Agriculture and Farmers Welfare, Government of India. Established on 16 July 1929 as the Imperial Council of Agricultural Research, it serves as the apex body for coordinating, guiding, and managing research and education in agriculture, including horticulture, fisheries, and animal sciences, across the country. With 113 ICAR institutes and 74 agricultural universities spread across the nation, it is one of the largest national agricultural systems in the world. The headquarters of this council is located at Krishi Bhavan, New Delhi.

Explanation

The Sangeet Natak Akademi, India's national academy for music, dance, and drama, instituted the Ustad Bismillah Khan Yuva Puraskar in 2006. This award was created to identify and encourage outstanding young talents under the age of 40 across various categories of performing arts. It was named in memory of the legendary Shehnai maestro and Bharat Ratna recipient Ustad Bismillah Khan, who passed away in August 2006. The introduction of this prize aimed to provide national recognition to promising artists early in their careers, complementing the senior Akademi Awards and helping to sustain traditional Indian art forms through the younger generation.

Explanation

Food preservatives are substances added to food products to prevent decomposition by microbial growth or by undesirable chemical changes. Salt preserves food by drawing out moisture through the process of osmosis, creating a dehydrated environment where bacteria cannot thrive. Sodium nitrite is a specific chemical preservative used extensively in cured meats to inhibit the growth of Clostridium botulinum and to maintain the characteristic pink color of the meat. Many spices contain natural antimicrobial compounds that retard spoilage and extend shelf life. Vinegar contains acetic acid (CH₃COOH), which increases the acidity of the food to a level that inhibits the growth of most bacteria and molds. These substances effectively prolong the storage life of food by creating conditions unfavorable for microorganisms.

Explanation

Matha B. Manjamma Jogati is a prominent transgender folk dancer and theatre artist from Karnataka who was awarded the Padma Shri in 2021 for her significant contributions to the field of folk arts. She is a dedicated practitioner and promoter of Jogati Nritya, a traditional ritual dance form performed by the Jogappa community in honor of Goddess Renuka Yellamma. Over several decades, she has played a vital role in preserving and popularizing this folk tradition across rural Karnataka and its neighbouring regions in Tamil Nadu and Andhra Pradesh. Her recognition also stems from her history-making appointment as the first transgender president of the Karnataka Janapada Academy, where she worked to uplift rural folk performers and safeguard the cultural heritage of the Deccan region.

Explanation

Vijayalaya was the founder of the imperial Chola dynasty who captured Thanjavur from the Muttaraiyar chiefs in the middle of the ninth century. After establishing Thanjavur as his capital, he built a temple dedicated to the goddess Nishumbhasudini, a form of goddess Durga, to mark his victory and the beginning of Chola dominance in the region. This temple served as a significant early religious structure of the Chola period, reflecting the ruler's devotion and the consolidation of his power in the Kaveri delta.

Explanation

The Durand Line is the 2,640-kilometer international land border between Afghanistan and Pakistan. It was established in 1893 following a memorandum of understanding between Sir Mortimer Durand, a British diplomat of the British Raj, and the Afghan Emir Abdur Rahman Khan. The boundary was created to fix the limits of their respective spheres of influence and to improve diplomatic relations and trade. Upon its independence in 1947, Pakistan inherited the Durand Line as its official western border. The line traverses geographically diverse and rugged terrain, including the Hindu Kush mountain range and the Khyber Pass.

Explanation

Phase-I of Sagar Parikrama was inaugurated on March 5, 2022, as an initiative of the Department of Fisheries under the Ministry of Fisheries, Animal Husbandry and Dairying. The program officially commenced from Mandvi, Gujarat, specifically starting at the Shyamji Krishna Varma Memorial. This maritime journey was organized to engage with the fisherfolk and coastal communities to understand their challenges and disseminate information regarding government schemes such as the Pradhan Mantri Matsya Sampada Yojana (PMMSY) and Kisan Credit Cards (KCC). The first phase of this navigation program covered the coastal stretch from Mandvi and proceeded towards Porbandar, passing through Okha and Dwarka.

Explanation

Raj Bawa was named the Player of the Match in the 2022 ICC Under-19 World Cup final for his exceptional all-round performance against England at the Sir Vivian Richards Stadium in Antigua. He achieved a historic milestone by taking 5 wickets for 31 runs, becoming the first Indian cricketer to claim a five-wicket haul in the final of a U-19 World Cup. His clinical bowling performance was instrumental in restricting England to 189 runs. Furthermore, he contributed significantly with the bat, scoring a vital 35 runs in the middle order to help steady the innings and guide India to a four-wicket victory, securing their fifth title in the tournament's history.

Explanation

The Regulating Act of 1773 was the first parliamentary legislation introduced by the British government to oversee and regulate the affairs of the East India Company in India. This Act changed the designation of the Governor of Bengal to the Governor-General of Bengal and established a Council of four members to assist him. Warren Hastings, who had been serving as the Governor of Bengal since 1772, was appointed as the first Governor-General under this Act. The legislation significantly centralized British administration in India by making the governors of Bombay and Madras subordinate to the Governor-General of Bengal in matters of war and peace, effectively laying the foundation for a central administration in India.

Explanation

A budget deficit occurs when total expenditure exceeds total revenue within a specific financial year. It represents a situation where the government or an entity is spending more money than it is generating through its usual income streams, such as taxes, duties, and fees. The gap is represented by the formula Budget Deficit = Total Expenditure - Total Revenue. This financial condition indicates that the entity's current income is insufficient to cover its operational or developmental costs, often requiring the mobilization of additional funds through borrowing or external financing to meet the shortfall.

Explanation

Raja Ram Mohan Roy published his first work, Tuhfat-ul-Muwahhidin, in 1803, which is translated into English as A Gift to Monotheists or Gift to Monotheism. This treatise was written in Persian with a preface in Arabic. In this book, he employed rationalist logic to argue against the practice of polytheism and idol worship. He maintained that the belief in a single Supreme Being is a natural human instinct and a universal truth that underlies all major religions, which have otherwise been clouded by superstitions and priestcraft. This work established him as a pioneer of socio-religious reform in India, focusing on the unity of God and the use of reason in understanding religious texts.

Explanation

Yamini Krishnamurthy is an eminent figure in the realm of Indian classical dance, recognized primarily for her exceptional skill and mastery in Bharatanatyam. Born in Andhra Pradesh, she dedicated her career to the preservation and promotion of this ancient South Indian dance form, becoming one of its most celebrated exponents. Her performances are noted for their rhythmic precision and expressive storytelling. In recognition of her significant contributions to Indian art and culture through Bharatanatyam and Kuchipudi, the Government of India has conferred upon her several of the nation's highest civilian honors, including the Padma Shri, the Padma Bhushan, and the Padma Vibhushan.

Explanation

A biome is a large-scale geographic area that contains a collection of ecosystems sharing similar climatic conditions, such as temperature and precipitation. It represents a higher level of organization in the biosphere where multiple ecosystems with comparable vegetation and wildlife adaptations are grouped together. Common examples include tropical rainforests, savannas, deserts, and tundras, each defined by the distinct set of biological communities that have evolved to thrive within its specific environmental parameters.

Explanation

Pandit Birju Maharaj, the legendary maestro of the Lucknow Kalka-Bindadin Gharana of Kathak, choreographed the song Mohe Rang Do Laal for the 2015 film Bajirao Mastani. The song features Deepika Padukone and is rooted in the classical Kathak tradition, emphasizing intricate footwork, graceful hand gestures, and expressive storytelling known as abhinaya. For his masterful choreography in this song, Birju Maharaj was honored with the National Film Award for Best Choreography at the 63rd National Film Awards. His involvement ensured the performance maintained the technical rigor and aesthetic elegance characteristic of professional Kathak recitals.

Explanation

Lithium aluminum hydride (LiAlH₄), also known as LAH, is a powerful and versatile reducing agent in organic chemistry. Its high reactivity stems from the strongly nucleophilic nature of the hydride ions (H⁻) it releases. Unlike milder reducing agents, LAH is capable of reducing a wide range of functional groups. It reduces aldehydes and ketones to primary and secondary alcohols, respectively. More significantly, it possesses the strength required to reduce less reactive carbonyl derivatives, such as esters, carboxylic acid chlorides, and carboxylic acids, all the way to primary alcohols. It is also capable of reducing carboxylate salts to alcohols, a transformation that most other common hydride reagents cannot achieve. The reaction typically proceeds via nucleophilic attack of the hydride on the carbonyl carbon, followed by the displacement of leaving groups where applicable.

Explanation

The river Ganga originates as the Bhagirathi from the Gangotri Glacier at Gaumukh in the Himalayas. It is only after the Bhagirathi meets the Alaknanda at Devprayag that the river is officially called the Ganga.