Question

why is it not proper to use cow dung cakes as a fuel

Answer 1

because it have low calorific value and it pollutes the environment as it releases harmful gasses.

Answer 2

Why is it not proper to use cow dung cakes as a fuel?

1. Burning of dry dung-cakes causes pollution of the air.
2. Dry dung-cakes after burning leaves a large quantity of ash.
3. Burning of dung-cakes destroy useful plant nutrients.
4. Dry dung-cakes has a lower calorific value.