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In warm clouds, raindrops mainly grow through which process?

Answer and explanation

Correct answer: By collision and coalescence

The correct answer is C: collision and coalescence. In a warm cloud, liquid droplets of different sizes move with the air. Larger or faster-falling droplets collide with smaller droplets. When they join successfully, they coalesce into a larger drop. Repeated collisions can produce drops heavy enough to overcome air resistance and fall as rain. A is wrong because direct ice deposition is associated with ice processes in cold clouds, not the main process in warm liquid clouds. B is wrong because ozone formation does not enlarge cloud droplets. D is wrong because zero air pressure is neither required nor normal. Memory cue: warm cloud rain grows by liquid drops meeting and merging.

Related tags

Collision CoalescenceWarm CloudsRaindrop GrowthClouds And PrecipitationWater In The AtmosphereGeographyClass 12 Mcq

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