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Which combination is most suitable for cyclonic rainfall?

Answer and explanation

Correct answer: Different air masses meet and warm air rises

Correct answer: A. Cyclonic rainfall is associated with a low-pressure system in which air converges and rises. In many textbook descriptions, different air masses meet along a front; the warmer, lighter air is forced to rise over the colder, denser air. As the warm air rises, it expands and cools. Cooling can bring the air to saturation, so water vapour condenses into clouds and precipitation may follow. Moisture supply and sufficient uplift are important, so a meeting of air masses with rising warm air is the most suitable combination. B describes cold surface conditions and dryness, which do not provide the required moist uplift. C removes the water source and air movement, while D is a rock process unrelated to atmospheric rainfall. Memory cue: cyclonic or frontal rain involves convergence, uplift, cooling, condensation, and precipitation.

Related tags

Cyclonic RainfallAir MassesFrontal LiftingClouds And PrecipitationWater In The AtmosphereGeographyClass 12 Mcq

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