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How does a sharp increase in the surface water temperature of oceans affect the formation of cyclones?

Answer and explanation

Correct answer: Increased evaporation and latent heat increase cyclone intensity

Answer: B. Warm ocean water supplies energy to a developing tropical cyclone. First, higher surface temperature increases evaporation, so more water vapour enters the air. As moist air rises and the vapour condenses into cloud droplets, latent heat is released. This heat warms the rising air, supports further uplift, lowers pressure near the centre, and can strengthen the circulation, provided other conditions such as suitable winds are present. Thus warm water can increase cyclone intensity; it does not guarantee that every cyclone will form or intensify. A is wrong because warming does not completely stop cyclones. C is wrong because the added heat generally supports, rather than destroys, the storm. D concerns groundwater, not the direct atmospheric energy source of an ocean cyclone. Memory cue: warm sea plus moist rising air supplies storm energy.

Related tags

CycloneOcean TemperatureLatent HeatHydrological CycleThe Living WorldBiologyClass 11 Mcq

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