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Cumulus clouds are more closely associated with which type of air movement?

Answer and explanation

Correct answer: Rising warm air

Correct answer: A, rising warm air. The Sun can warm the ground, and the ground then warms the air touching it. This warmer air becomes relatively less dense and rises by convection. As it rises, surrounding pressure decreases, so the air expands and cools. If it cools to the condensation level, water vapour condenses on tiny particles and produces visible cloud, often with the rounded, piled appearance of cumulus. A is correct because convection and upward-moving warm air favour cumulus development. B is wrong because a rock is not an air current, and sinking motion does not describe the main process here. C is irrelevant to cloud formation. D is wrong because clouds form in air containing moisture, not in a vacuum. Memory cue: cumulus looks piled up because warm air piles upward by convection.

Related tags

CumulusConvectionRising AirClouds And PrecipitationWater In The AtmosphereGeographyClass 12 Mcq

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