Question

The use of dry wood as a domestic fuel is not considered good. state any two reason for it.

Answer 1

Dry wood as a fuel

1. When dry wood is used as fuel, it is referred to as firewood.
2. It is used as a domestic fuel for cooking purposes.

Disadvantages of using dry wood as a domestic fuel

1. Dry wood produces smoke and leaves a large amount of residue after burning.
2. The calorific value of wood is $17\mathrm{kJ}/g$ which is low. As a result, in order to generate a sufficient amount of heat, one must burn a large amount of wood.
3. The use of wood as fuel leads to deforestation.
4. It occupies a large area due to its size and shape. Moreover, its transportation is cumbersome. Hence, it's not compact and convenient.