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Why does dew generally disappear when temperature rises during the day?

Answer and explanation

Correct answer: The dew droplets evaporate into water vapour

Correct answer: A. Dew forms when a surface becomes cool enough for nearby water vapour to condense into liquid droplets. After sunrise, solar heating raises the temperature of the surface and the droplets. With added heat, liquid water changes back into invisible water vapour through evaporation, so the dew appears to disappear. B is wrong because daytime warming does not normally freeze dew. C describes further condensation, whereas warming usually favours evaporation. D may occur partly on some surfaces, but it is not the general atmospheric explanation and cannot account for all dew disappearing. Memory cue: dew forms by night-time cooling and disappears by daytime warming.

Related tags

GeographyDewEvaporationCondensationDew PointForms Of Condensation: DewFrostFogAnd MistForms Of Condensation Dew Frost Fog And MistWater In The Atmosphere

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