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Why does a clear, calm night help dew form?

Answer and explanation

Correct answer: Because the surface can cool to the dew point

The correct answer is D. Dew forms when a surface cools to the dew point, allowing water vapour to condense into liquid droplets. On a clear night, the surface can lose heat efficiently by emitting longwave radiation. Calm conditions limit mixing with warmer air above, helping the surface cool. These conditions make it more likely that the surface will reach the dew point.

Related tags

DewDew PointRadiational CoolingForms Of Condensation: DewFrostFogAnd MistForms Of Condensation Dew Frost Fog And MistWater In The AtmosphereGeographyClass 12 Mcq

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