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When is convectional rainfall generally more likely?

Answer and explanation

Correct answer: After strong afternoon heating

Correct answer: A. Convectional rainfall begins with strong heating of the land surface. The air touching the warm surface becomes warmer, expands, and rises because it is less dense. As it rises, it cools; if it becomes saturated, condensation produces clouds and rainfall. Strong heating is often greatest by afternoon, so the first option gives the best general clue. Extreme midnight cold does not normally provide the heating needed for convection, making B unsuitable. Snowfall is a different form of precipitation and does not occur everywhere, so C is false. Convection requires air movement; if there were no air, there could be no rising air or convection, so D is impossible. Memory cue: heat below makes air rise above.

Related tags

Convectional-RainfallSurface-HeatingAfternoonConvectionClouds And PrecipitationWater In The AtmosphereGeographyClass 12 Mcq

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