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If fog seems to lift or clear after sunrise what is the reason?

Answer and explanation

Correct answer: Surface heating and evaporation of droplets

The correct answer is A. Before sunrise, the ground may be cool enough to chill the air near it, allowing water vapour to condense into suspended droplets. After sunrise, solar radiation warms the ground and the lower atmosphere. As the air becomes warmer, its capacity to hold water vapour increases, and some fog droplets evaporate back into the air. Gentle mixing may also help disperse the fog, but the key process represented in the options is heating followed by evaporation. B is wrong because vapour does not become rock. C is wrong because air does not disappear; it may mix and move. D is wrong because the Sun supplies heat after sunrise. Memory cue: sunlight warms, warmer air evaporates droplets, and fog clears.

Related tags

Fog DissipationSunriseEvaporationHeatingForms Of Condensation: DewFrostFogAnd MistForms Of Condensation Dew Frost Fog And MistWater In The AtmosphereGeography

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