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?
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A.
1 only
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B.
2 only
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C.
Both 1 and 2
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D.
Neither 1 nor 2
Correct Answer:
D. Neither 1 nor 2
Explanation:
Coalbed methane (CBM) is a type of natural gas sourced from coal seams, primarily composed of methane with minimal amounts of heavier hydrocarbons like propane or butane. This distinguishes it from shale gas, which is also methane-rich but found in different geological formations. In India, while shale gas reserves are widely distributed across regions such as Cambay, Gondwana, and the Krishna-Godavari basin, coalbed methane is specifically identified in areas like Asansol in West Bengal. Consequently, both assertions regarding their composition and identical distribution are inaccurate.
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