3. 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?

1. 1 only

2. 2 only

3. Both 1 and 2

4. Neither 1 nor 2

Correct Answer :

Neither 1 nor 2