Question

Which is the main source to produce biogas? (Topic: BIOGAS)

Answer 1

hey here is ur answer

the main source of bio gas is the cows dung and some vegetative waste

I hope this helps you

Answer 2

Answer: The main source of biogas is manure, agricultural waste, cow dung, and vegetable wastes.  

These are all organic matters and biogas is produced from these resources after breaking down chemically in absence of oxygen. They are a renewable energy source.

The main components of biogas are methane and carbon dioxide which are combusted with oxygen to produce energy.