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Question
On an outline map of India, show the following.
- Areas receiving rainfall over 400 cm.
- Areas receiving less than 20 cm of rainfall.
- The direction of the south-west monsoon over India.
Solution
- The Western Coast and NorthEastern India receive rainfall over 400 cm. Mawsynram and Cherrapunji in Meghalaya are known for receiving maximum rainfall in the world. The Andaman Islands and Lakshadweep Islands are also known to receive annual rainfall above 400 cm.
- The parts of Northern Kashmir, Western Rajasthan, Deccan plateau, and Punjab are known to be the areas that receive scanty rainfall that is less than 20 cm. In the Northern part of India, rainfall decreases toward the west, while in the peninsular region except for Tamil Nadu, the rainfall decreases eastwards.
- South-west monsoon is a compound and a self-evolved weather system unique to the Indian subcontinent. The south west monsoon in India moves in south-west direction. In India, there are only south-west and north-east monsoons. Because of the Coriolis effect, the south-east monsoon becomes south-west trade winds.
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