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For rainfall to occur, what must happen to water droplets in clouds?

Answer and explanation

Correct answer: They become heavy and fall

Correct answer: A. Clouds contain very small water droplets and sometimes ice particles suspended in the air. Through processes such as condensation and collision, some droplets join together and become larger. As their size and weight increase, air currents can no longer keep them suspended, so gravity pulls them downward. If the droplets remain liquid while reaching the ground, the precipitation is rain. Option A is correct because rainfall requires droplets to become sufficiently large and heavy to fall. Option B is wrong because continuous upward movement keeps droplets suspended rather than producing rainfall. Option C is wrong because disappearing droplets cannot fall as rain. Option D is wrong because droplets do not turn into dust to produce rain. Memory cue: cloud droplets must grow, become heavy, and fall.

Related tags

GeographyCloudsPrecipitationRainfallWater DropletsForms Of Condensation: DewFrostFogAnd MistForms Of Condensation Dew Frost Fog And MistWater In The Atmosphere

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