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If large particles form in a cloud but strong uplift continues why may they not fall immediately?

Answer and explanation

Correct answer: Rising air can oppose their fall

Answer: A. A cloud particle falls when its downward gravitational settling becomes stronger than the upward motion of air and other resisting forces. Strong updrafts can carry even relatively large droplets or ice particles upward, or keep them suspended for longer. During that extra time, collisions and freezing may make them still larger. Eventually, if their weight and fall speed exceed the updraft, they descend as rain, snow or hail. B is not a reason to remain suspended; particles can still contain water. C is false because gravity continues to act. D is unrelated and scientifically impossible in an ordinary cloud. Memory cue: precipitation begins when fall speed wins the contest against updraft speed.

Related tags

UpdraftsFall SpeedPrecipitation ParticlesClouds And PrecipitationWater In The AtmosphereGeographyClass 12 Mcq

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