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What is the most scientific combined reason for heavy rainfall in northeastern India?

Answer and explanation

Correct answer: Moist winds of the Bay branch and hill barriers

The direct answer is A: moist Bay of Bengal branch winds meet northeastern hills and are forced to rise. The chain is simple: winds collect moisture over the bay; they move towards the northeast; hills block their path; rising air cools; water vapour condenses; heavy rain falls. A is correct because it combines moisture supply with relief, the two essential causes. B is wrong because western disturbances mainly affect winter weather in northwestern India, and the Thar is not the main cause here. C is wrong because the northeast is not characterised by extreme dryness. D is wrong because the Aravalli range is far from the main northeastern mechanism and its alignment does not explain this rainfall. Memory cue: moist wind plus rising over hills equals heavy rain.

Related tags

Northeast IndiaBay BranchHill Barrier

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