DAILY CURRENT AFFAIRS IAS | UPSC Prelims and Mains Exam – 25th March 2023
Archives (PRELIMS & MAINS Focus) Coal Bed Methane Syllabus Prelims – Geography and Environment and Ecology Context: Recently, the Union Minister of Coal, Mines and Parliamentary Affairs spoke on the extraction of Coal Bed Methane in the Lok Sabha. About Coal Bed Methane:- IMAGE SOURCE: Natural Gas Drilling Basics – Lawrence & Mercer ALLARM – A Citizen Science Initiative from Westminster College (google.com) It is an unconventional form of natural gas. It is found in coal deposits or coal seams. It is formed during the process of coalification, the transformation of plant material into coal. Extraction:- Coal Bed Methane is extracted from unconventional gas reservoirs Unconventional gas reservoirs are where gas is extracted directly from the rock that is the source of the gas For example shale in the case of shale gas and coal in the case of CBM Process:- The methane is held underground within the coal and is extracted by drilling into the coal seam and removing the groundwater. The resulting drop in pressure causes methane to be released from the coal. Uses of Coal Bed Methane:- It can be used in Power generation. It can be used as Compressed natural gas (CNG) auto fuel. It can be used as a feedstock for fertilisers. It can be used for Industrial uses such as cement production, rolling mills, steel plants, and methanol production. Reserves in India:- IMAGE SOURCE: Coal Bed Methane IN INDIA MAP UPSC – Bing The country’s coal and CBM reserves are found in around 12 states of India. The Gondwana sediments of eastern India hold the bulk. The Damodar Koel valley and Son valley are prospective areas for CBM development. CBM projects existing in Raniganj coalfields, the Parbatpur block in Jharia coalfield and the East and West Bokaro coalfields. The Son valley includes the Sonhat North and Sohagpur East and West blocks. MUST READ: Methane Emissions SOURCE: PIB PREVIOUS YEAR QUESTIONS Q.1) With reference to India, consider the following statements: (2022) Monazite is a source of rare earth. Monazite contains thorium. Monazite occurs naturally in the entire Indian coastal sands in India. In India, Government bodies only can process or export monazite. Which of the statements given above is correct? 1, 2 and 3 only 1, 2 and 4 only 3 and 4 only 1, 2, 3 and 4 Q.2) Consider the following statements: (2020) Coal ash contains arsenic, lead and mercury. Coal-fired power plants release sulphur dioxide and oxides of nitrogen into the environment. High ash content is observed in Indian coal. Which of the statements given above is/are correct? 1 only 2 and 3 only 3 only 1, 2 and 3 Western Disturbances Syllabus Prelims –Environment and Ecology Context: Recent studies suggest that Climate change is causing Western Disturbances to weaken. About Western Disturbances:- IMAGE SOURCE: Readying to pack your woollens up? Think again! Extreme weather conditions in North-West India next week will chill you to the bone – India Today These are low-pressure areas embedded in the Westerlies. Westerlies: the planetary winds that flow from west to east between 30°-60° latitude. Disturbance in the name indicates an area of “disturbed” or reduced air pressure. Western disturbances are formed naturally. They are labelled as an extra-tropical storms. Extra-tropical: it means outside the tropics. As the WD originates outside the tropical region, the word “extra-tropical” is used for them. They originate in the Mediterranean region and travel over Iran, Iraq, Afghanistan and Pakistan to enter India loaded with moisture In India, the Himalayas obstruct them, causing rain and snow in the western Himalayas. They usually bring mild rain during January-February, which is beneficial to the rabi crop. Since wheat is one of the most important Rabi crops and is the staple diet of people in this region, winter showers contribute to meeting India’s food security. These are associated with a cloudy sky, higher night temperatures and unusual rain. Excessive precipitation due to western disturbances can cause crop damage, landslides, floods and avalanches over the Indo-Gangetic plains. They occasionally bring cold wave conditions and dense fog. MUST READ: NORTHEAST (WINTER) MONSOON SOURCE: DOWN TO EARTH PREVIOUS YEAR QUESTIONS Q.1) Consider the following statements: (2022) High clouds primarily reflect solar radiation and cool the surface of the Earth. Low clouds have a high absorption of infrared radiation emanating from the Earth’s surface and thus cause a warming effect. Which of the statements given above is/are correct? 1 only 2 only Both 1 and 2 Neither 1 nor 2 Q.2) Consider the following statements: (2021) In the tropical zone, the western sections of the oceans are warmer than the eastern sections owing to the influence of trade winds. In the temperate Zone, westerlies make the eastern sections of oceans warmer than the western sections Which of the statements given above is/are correct? 1 only 2 only Both 1 and 2 Neither 1 and 2 Vedic Heritage Portal Syllabus Prelims –Art and Culture Context: Recently, the Vedic Heritage Portal created by the Indira Gandhi National Centre for the Arts was inaugurated. About Vedic Heritage Portal:- The ‘Vedic Heritage Portal’ created by the Indira Gandhi National Centre for the Arts (IGNCA). It is a one-stop solution for common users and researchers seeking any information regarding ‘Vedic heritage. It gives detailed information about oral traditions, a textual traditions in form of published books/manuscripts or implements. It aims to communicate messages enshrined in the Vedas. It will help common people to have a general understanding of the Vedas. The audio-visual recording of four Vedas has been uploaded on the Vedic Heritage portal. The portal has over 18 thousand mantras of the four Vedas with a duration of over 550 hours. About Indira Gandhi National Centre for the Arts:- The IGNCA comes under of Ministry of Culture. It was established in 1987 as an autonomous institution. The founder trustees of IGNCA were Shri Rajiv Gandhi, Shri R. Venkataraman, Shri P.V. Narasimha Rao, Smt. Pupul Jayakar, the Finance Minister of 1987, Shri H. Y. Sharada Prasad and Dr. Kapila Vatsyayan. It is
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