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Why can condensation occur in rising air?

Answer and explanation

Correct answer: Air expands and cools

Correct answer: A, air expands and cools. Atmospheric pressure generally decreases with height. When an air parcel rises into this lower pressure, it expands; expansion uses energy and the parcel cools without requiring direct heat loss, a process called adiabatic cooling. If the air cools to its dew point and becomes saturated, water vapour condenses on tiny particles to form cloud droplets. Option B is wrong because rising air does not always become dry; it may reach saturation. C is unrelated and solar energy does not suddenly increase simply because air rises. D is false because gravity continues to act. Memory cue: rising air expands, cooling may reach saturation, and saturation permits condensation.

Related tags

GeographyAdiabatic CoolingCondensationCloudsHumidityEvaporationAnd CondensationHumidity Evaporation And CondensationWater In The AtmosphereClass 12 Mcq

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