Answer:
The correct option is B) Biogas
Step-by-step explanation:
Compost can be described as organic matter that has been decomposed. Methane gas can abundantly be produced by burning compost pile. Methane gas can be used as fuel as it is one of the cleanest gases which can be used. Methane gas is flammable and can be used as a power source in generators to help in the production of electricity. Hence, a compost pile is an effective method to produce biogas. However, this biogas is being used only for small scale uses.