- Both coalbed methane and shale gas are primarily composed of methane (natural gas). - Shale gas is found in shale formations, not just a mixture of propane and butane. - India has identified sources of both coalbed methane and shale gas.
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?
Asked in UPSC IAS 2014 · Topic: Non-Conventional Energy (Biomass Energy: Biofuels (bioethanol, biodiesel, biogas) and waste-to-energy)
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