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Why do cirrus clouds usually produce little or no rainfall reaching the ground?

Answer and explanation

Correct answer: They are high, thin clouds made mainly of ice crystals

Correct answer: B, cirrus clouds are high, thin clouds made mainly of ice crystals. Cirrus clouds form in the very cold upper troposphere, where water is usually present as tiny ice crystals. Their particles are sparse and small, so they do not commonly grow large enough to fall as precipitation. Even when ice begins to fall, it may evaporate or sublimate before reaching the warmer, drier air near the ground; this is called virga. A is wrong because cirrus clouds are high, not low. C is wrong because clouds form from condensed water or ice, not rocks. D is wrong because cirrus ice crystals are suspended high in the atmosphere and do not always reach or deposit on the ground. Memory cue: cirrus looks like delicate feathers and is a high-level ice cloud.

Related tags

CirrusHigh CloudsIce CrystalsLight PrecipitationClouds And PrecipitationWater In The AtmosphereGeographyClass 12 Mcq

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