(i) Rajasthan is a desert because it receives annual rainfall less than 75 cm. This rainfall does not support dense forests. Dry forests like kikar, babul and khair are found here. These are the typical trees of a desert. Generally khair, bushes and scrubs are found.

(ii) It is a hot region. So the loss of moisture is great due to transpiration. Trees have needle-shaped thorns which prevent loss of moisture.

Solution

1. Rajasthan is a desert because it receives annual rainfall less than 75 cm. This rainfall does not support dense forests. Dry forests like kikar, babul and khair are found here. These are the typical trees of a desert. Generally khair, bushes and scrubs are found.

2. It is a hot region. So the loss of moisture is great due to transpiration. Trees have needle-shaped thorns which prevent loss of moisture.