Fuels obtained from biomass:
i. Fuels can be obtained from biomass like plants and animals or municipal waste. These fuels are known as biomass fuels.
ii. Biomass fuels may include biogas, ethanol, biodiesel, etc that are obtained by degradation of animal dung or municipal waste.
iii. Biomass like forest residues, crop residues, etc., can also be used for burning as fuel.