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Before rainfall what change occurs in cloud droplets?

Answer and explanation

Correct answer: They become larger and heavier

Answer: A, they become larger and heavier. Cloud droplets are very small and can remain suspended because air currents support them. Inside a cloud, droplets may collide and join together, or ice particles may grow and later melt as they fall through warmer air. These processes increase the size and mass of the water particles. When a droplet becomes heavy enough for gravity to overcome the upward support of the air, it falls as precipitation, provided it does not evaporate before reaching the ground. A is therefore correct. B and D describe changes into soil or rock, which are unrelated to the water cycle. C is also wrong: droplets may evaporate in some conditions, but rainfall requires suitable particles to grow and fall. Memory cue: small suspended droplets must grow before they can fall as rain.

Related tags

Rain FormationDroplet GrowthCloud DropletsPrecipitationClouds And PrecipitationWater In The AtmosphereGeographyClass 12 Mcq

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