Question

What is composition of bio-gas?
Mention any four benefits of bio-gas.

Hint:

Bio-gas is methane-rich; its benefits include sustainability and waste reduction.

Answer 1

i. Composition: Bio-gas primarily contains methane (50–70%), carbon dioxide (30–40%), and traces of hydrogen sulfide, nitrogen, and water vapor.
ii. Benefits:
1. Renewable energy source.
2. Reduces greenhouse gas emissions.
3. Utilizes organic waste, reducing landfill use.
4. Provides clean fuel for cooking/heating.
Answer: i. Methane, CO\(_2\), traces of H\(_2\)S, N\(_2\); ii. Renewable, reduces emissions, waste management, clean fuel.