UPSC 2014: With reference to two non-conventional energy sources called ‘coalbed methane’ and ‘shale gas’, consider the following statements : 1. Coalbed methane is the pure methane gas extracted from coal seams, while shale gas is a mixture of propane and butane only that can be extracted from fine-grained sedimentary rocks. 2. In India, abundant coalbed methane sources exist, but so far no shale gas sources have been found. Which of the statements given above is/are correct?

The correct answer is option (d): Neither 1 nor 2. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.

This question was asked in UPSC CSE Prelims 2014, GS Paper 1, as Question 38. It falls under Indian Economy > Infrastructure & Industry.

This question is rated "moderate". It requires sound conceptual understanding of the topic.

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