Question

Name the constituents of biogas. State reasons why biogas is considered for an ideal fuel for domestic use.

Answer 1

Biogas: Biogas is produced by the degradation of biomass like animal waste, plant waste, and human waste in a container in the absence of air.

Constituents: Biogas comprises two major gases: methane and carbon dioxide. Carbon dioxide usually constitutes 25%, and methane constitutes 75% of the biogas. The other constituents are the gases like hydrogen and nitrogen.

Explanation: The reasons behind biogas being an ideal fuel for domestic use are stated below.

• Biogas is a clean fuel and is smoke-free.
• The biogas has a high calorific value.
• The cost of biogas is comparatively lower than other fuels.
• The biogas is ash-free and is clean.