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Why can water droplets remain floating in clouds?

Answer and explanation

Correct answer: Because they are very tiny and light

Correct answer: B, because the droplets are very tiny and light. Cloud droplets are made of liquid water, but each one is usually so small that its weight is very low. Air resistance, turbulence, and gentle upward currents can support such droplets for a considerable time. They do not float because they are lighter than air in a simple sense; rather, their small size gives air movement a strong effect relative to their weight. As droplets collide and join together, they become larger and heavier. Eventually gravity can overcome the supporting air movement, and the drops fall as rain. Option A is wrong because being heavy would make a droplet fall more readily. Option B is correct. Option C is wrong because droplets are liquid water, not stones. Option D is wrong because they obviously contain water. Memory cue: tiny droplets stay suspended; enlarged droplets precipitate.

Related tags

Cloud-DropletsSuspensionCloudsGravityClouds And PrecipitationWater In The AtmosphereGeographyClass 12 Mcq

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