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GeographyMediumAsked in: UPSC Civil Services · CSE Prelims 2016, GS Paper I

In which of the following regions of India are shale gas resources found? 1. Cambay Basin 2. Cauvery Basin 3. Krishna-Godavari Basin Select the correct answer using the code given below.

  1. A.1 and 2 only
  2. B.3 only
  3. C.2 and 3 only
  4. D.1, 2 and 3

Correct answer

D. 1, 2 and 3

Explanation

The correct answer is D, 1, 2 and 3. Shale gas resources have been identified in all three basins: Cambay, Cauvery and Krishna-Godavari. Shale gas is natural gas, mostly methane, trapped in fine-grained sedimentary rock called shale, and it is extracted by horizontal drilling and hydraulic fracturing. Studies by the Directorate General of Hydrocarbons and international assessments named six basins in India as the most promising for shale gas: Cambay in Gujarat, Assam-Arakan, Gondwana, Krishna-Godavari onshore, Cauvery onshore and the Indo-Gangetic plain. ONGC began India's first shale gas exploration well near Durgapur in the Damodar valley in 2013. Option A is wrong because it leaves out the Krishna-Godavari basin, one of the main prospective areas. Option B is wrong because shale gas is not limited to the Krishna-Godavari basin. Option C is wrong because it leaves out the Cambay basin in Gujarat, which is among the most studied shale areas in India. Exam tip: India's six shale basins are Cambay, Assam-Arakan, Gondwana, KG, Cauvery and the Indo-Gangetic plain.

Practice Questions

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Q2.GeographyAsked in: CDS · CDS-II 2017, GKMedium

Which of the following statements is/are correct? 1. Himalayan rivers have their origin in the snow-covered areas, hence are dry in winter season. 2. Rivers of the Peninsular Plateau have reached maturity. 3. Himalayan rivers depict all the three stages of normal cycle of erosion. Select the correct answer using the code given below.

  1. A.2 only
  2. B.1 and 3 only
  3. C.2 and 3 only
  4. D.1, 2 and 3
Show answer
Correct answer: C. 2 and 3 only

Himalayan rivers are perennial, so statement 1 is wrong, while statements 2 and 3 are correct. Himalayan rivers such as the Ganga, Indus and Brahmaputra rise from glaciers and snowfields and also get monsoon rain, so they flow all year round, including in winter.

Q3.GeographyAsked in: CDS · CDS-II 2017, GKMedium

Which of the following statements related to latitude are true? 1. Rainfall, temperature and vegetation vary with latitude. 2. The difference between the longest day and the shortest day increases with latitude. 3. Indira Point is located approximately at 6°45' N latitude. Select the correct answer using the code given below.

  1. A.1 and 2 only
  2. B.1 and 3 only
  3. C.2 and 3 only
  4. D.1, 2 and 3
Show answer
Correct answer: D. 1, 2 and 3

All three statements about latitude are true. Latitude decides how directly the Sun's rays strike a place, so temperature, rainfall and the type of vegetation change from the equator towards the poles, from hot, wet rainforests to cold tundra.

Q4.GeographyAsked in: CDS · CDS-II 2017, GKMedium

Which of the following lakes is/are situated in Ladakh? 1. Tso Kar 2. Pangong Tso 3. Tsomgo 4. Tso Moriri Select the correct answer using the code given below.

  1. A.1 only
  2. B.2 and 3
  3. C.1, 2 and 4
  4. D.2 and 4 only
Show answer
Correct answer: C. 1, 2 and 4

Tso Kar, Pangong Tso and Tso Moriri are high-altitude lakes of Ladakh, while Tsomgo lies in Sikkim. Pangong Tso, at about 4,350 metres, is a long, narrow lake that stretches from Ladakh into Tibet, and most of its length lies on the Chinese side.