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What must cloud droplets become to form rainfall?

Answer and explanation

Correct answer: Large and heavy enough to fall

Correct answer: A, large and heavy enough to fall. Newly formed cloud droplets are extremely small and light, so air currents can keep them suspended in the cloud. For rainfall to occur, droplets must grow by joining with other droplets or by collecting water through processes inside the cloud. As their size and weight increase, gravity becomes strong enough to pull them downward. A is correct because falling rain requires sufficiently large liquid droplets. B is wrong because droplets that become smaller or disappear cannot produce rain. C is wrong because rainfall requires water, not dry particles. D is wrong because raindrops are liquid, not rock-like solids. Memory cue: tiny cloud droplets float; bigger, heavier droplets fall as rain.

Related tags

Rain FormationCloud DropletsPrecipitationWater CycleClouds And PrecipitationWater In The AtmosphereGeographyClass 12 Mcq

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