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why have the western slopes of the western ghats covered with thick forests and not the eastern slopes?
the Arabian Sea lies to the west of the western ghats.so,the western slopes face the monsoon winds blowing towards the land.As the winds blow from the sea they are laden with moisture.As they ascend the western slope,they cool down with increasing altitude,become saturated,result in the formation of rain clouds and bring heavy rainfall to the windward western slope.When the winds descend down the eastern slope,they have already shed much of their moisture.Further,they get warmer as they descend the slopes & hence produce negligible amount of rainfall on the leeward eastern slope.


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