Name the winds that are responsible for causing heaviest rainfall in the region.

What is meant by a 'rain shadow' area? Give an example and state the mountains responsible for the rain shadow area.

Give reasons :

1. In spite of the Aravalis many parts of Rajasthan do not receive much rain.
2. The Malabar coast has less rainy months but receives more rain than Coromandal Coast.
3. Punjab has three sources of rain.
4. Mawsynram receives more rain than Shillong.

Explain how is the winter rain caused. How is this rain beneficial?