Question

Firewood is over conventional fuel list any four reason of replacing it with the alternate source of energy

Answer 1

Firewood needs to be replaced with an alternate source of energy as-

》Low Calorific Value

》Leaves Solid Residue which needs to be disposed

》It burns with a smoky flame and hence, causes air pollution

》It is obtained by cutting down trees which are vital for our eco-system

Alternative sources like biogas provide cleaner fuel with higher Calorific Value, and leaves no residue while burning.