The amount and intensity of monsoon rainfall is determined by the frequency of

A Western disturbances
B Dust storms
C Cyclones
D Tropical depressions

Correct Answer: Tropical depressions

The amount and intensity of monsoon rainfall is determined by the frequency of tropical depressions. A tropical depression forms when a low pressure area is accompanied by thunderstorms that produce a circular wind flow with maximum sustained winds below 39 mph.

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