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What is the rainfall caused by the meeting of cold and warm air masses in the atmosphere called?

Answer and explanation

Correct answer: Frontal rainfall

Correct answer: B. When contrasting air masses meet, the boundary between them is called a front. Warm air is generally less dense and is forced to rise over colder, denser air, or it rises along a sloping frontal boundary. As the warm air rises, it expands and cools; if it reaches saturation, water vapour condenses into cloud droplets and precipitation may occur. This precipitation is called frontal or cyclonic rainfall. A occurs when moist air is lifted over a mountain barrier. C is mainly associated with strong surface heating that causes rising convection, not specifically the meeting of air masses. D refers to deliberate human attempts to enhance precipitation and is not the ordinary atmospheric process described. Memory cue: two contrasting air masses meeting means a front.

Related tags

Frontal-RainfallAir-MassesPrecipitationHydrological CycleThe Living WorldBiologyClass 11 Mcq

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