What are the disadvantages of using wood/dung as domestic fuel?
Disadvantages of using wood/dung as a domestic fuel:
(1) Burning of dry dung cakes/wood causes air pollution.
(2) Dry dung cakes/wood leave a large quantity of ash after burning.
(3) Burning of dung cakes destroys useful nutrients. Dung contains useful nutrients that can nourish plants.
(4) Dry dung/wood has a low calorific value.