Question

How is biogas a better than wood crowding cakes

Answer 1

because it has high calorific value and ignition temperature

Answer 2

How is biogas a better than wood or cow dung cakes?

1. It doesn't leave any ash after burning.
2. It burns with smokeless flame.
3. It has higher calorific value than dung-cake, wood & coal.
4. It is much cheaper than most of the common fuel.
5. Use of Biogas as a fuel will save forests & fossil fuels.