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Cyclonic rainfall is linked with which basic process?

Answer and explanation

Correct answer: Meeting and uplift of different air masses

Correct answer: A, meeting and uplift of different air masses. Cyclonic or frontal rainfall develops when contrasting air masses meet. Usually, warmer and lighter air is forced to rise over or along colder, denser air. During ascent, the warm air expands and cools. If it cools to the dew point, water vapour condenses into clouds, and continued condensation can produce precipitation. Option A is correct because it includes both the meeting of air masses and the upward lifting that causes cooling. B is wrong because rock melting is unrelated to atmospheric rainfall. C is wrong because drying of the sea cannot itself explain cyclonic uplift. D is wrong because cyclones involve moving, organized air and pressure differences, not a complete absence of air. Memory cue: fronts meet, warm air rises, cooling produces rain.

Related tags

Cyclonic RainfallFrontal LiftingAir MassesPrecipitationClouds And PrecipitationWater In The AtmosphereGeographyClass 12 Mcq

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