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If drops falling from a cloud evaporate before reaching the ground, how should this phenomenon be understood?

Answer and explanation

Correct answer: Virga-like condition

Correct answer: D, a virga-like condition. Precipitation begins when water or ice particles fall from a cloud, but the air below the cloud may be very dry. As the drops pass through this dry layer, some or all of their water changes back into invisible water vapour before reaching the ground. Therefore, the cloud may appear to produce falling streaks, while no rain is observed at the surface. Option A is wrong because surface flooding requires water to reach and accumulate on the ground. Option B is wrong because hail consists of solid ice formed and enlarged in strong storm clouds. Option C is wrong because snowfall means snow reaches the ground. Option D is correct because virga describes precipitation that evaporates or sublimates before reaching the surface. Memory cue: “falls from the cloud, disappears before the ground” points to virga.

Related tags

VirgaDry AirEvaporationPrecipitationClouds And PrecipitationWater In The AtmosphereGeographyClass 12 Mcq

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