Question: what are the advantages and disadvantages of biogas?
Answer: Biogas is Eco-Friendly. Biogas is a renewable, as well as a clean, source of energy. ... 
Biogas Generation Reduces Soil and Water Pollution. ... 
Biogas Generation Produces Organic Fertilizer. ... 
It's A Simple and Low-Cost Technology That Encourages A Circular Economy. ... 
Healthy Cooking Alternative For Developing Areas.