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Why is the shifting position of jet streams important in the Indian monsoon?

Answer and explanation

Correct answer: Because they influence upper atmospheric pressure and wind systems

The direct answer is A: jet streams influence upper-atmospheric pressure and wind systems. Jet streams are narrow bands of very fast winds high in the atmosphere. Their seasonal position and strength can alter upper-air circulation, pressure patterns, the development of low-pressure areas, and the arrival or strength of monsoon conditions. This is an advanced supporting explanation, not the only cause of the monsoon. Option A is correct because it describes their real atmospheric role. Option B is wrong because jet streams do not directly carve or change river courses. Option C is wrong because they do not make seawater fresh; desalination is a different process. Option D is wrong because they do not remove all clouds; their effects may influence weather systems but cannot eliminate every cloud. Exam cue: jet streams belong to upper-air circulation and help influence monsoon behaviour.

Related tags

ClimateIndian MonsoonJet Stream

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