Question

Why does the rainfall decreases from east to west in Northern India??

Answer 1

The rainfall decreases from east to west in northern India because of the following reason:

The inflow of the south-west monsoon into India is such that the windward side of the Western Ghats receives very heavy rainfall, more than 250 cm. The rain shadow region receives scanty rainfall and the moisture laden clouds shed the maximum rainfall of this season in the north-eastern part of the country. Thus, Mawsynram in the southern ranges of the Khasi Hills receives the highest average rainfall in the world. Rainfall in the Ganga valley decreases from the east to the west. Hence, Rajasthan and parts of Gujarat which are on the western get scanty rainfall.

Answer 2

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$<b>$The Baynof Bengal branch of South-west monsoon moves towards north east carrying more moisture and they give heavy rainfall in this region. As they move towards west, they carry less moisture and many turns into snow due to Himalayan mountains resulting in decrease in rainfall in West.

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