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Why are cumulonimbus clouds important in thundershowers?

Answer and explanation

Correct answer: They can have strong vertical motion and charge separation

Correct answer: B. Cumulonimbus is a deep, vertically developed storm cloud. Strong convection carries warm, moist air upward while downdrafts bring cooler air downward. Inside the cloud, collisions among water droplets, ice crystals, and soft hail can separate electrical charges. This produces the electrical conditions for lightning and thunder. The same strong upward and downward motions help droplets and ice particles grow, so heavy showers, hail, and gusty winds may occur. B is correct because vertical motion and charge separation are central features of thunderstorms. A is wrong because cumulonimbus is not a calm, layered cloud; stratus is the typical layered form. C is wrong because cumulonimbus commonly produces heavy rainfall. D is wrong because mist is a near-surface suspension, whereas cumulonimbus is a tall storm cloud. Memory cue: cumulonimbus means towering cloud, thunder, lightning, and heavy shower.

Related tags

ThundershowerCumulonimbusConvectionCharge SeparationClouds And PrecipitationWater In The AtmosphereGeographyClass 12 Mcq

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