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Why may air above a water body have more moisture?

Answer and explanation

Correct answer: Evaporation keeps occurring there

Direct answer: A, because evaporation keeps occurring there. At the surface of a lake, pond, river, or sea, some liquid-water molecules gain enough energy to escape into the air as water vapour. This continuing transfer supplies moisture to the air above the water body. The actual amount of moisture also depends on temperature, wind, and other conditions, so the question says air may have more moisture rather than always will. B is false because rocks do not create water in this process. C is false because wind may blow over water and can help move moist air; stillness is not the basic cause. D is false because temperature is not always low above water, and warmer conditions can often support faster evaporation. Memory cue: a water body is a source of atmospheric moisture because its exposed surface evaporates.

Related tags

GeographyWater BodyEvaporationAtmospheric MoistureHumidityAnd CondensationHumidity Evaporation And CondensationWater In The AtmosphereClass 12 Mcq

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