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Why can very strong wind prevent dew formation?

Answer and explanation

Correct answer: Because it prevents a cool moist layer near the surface

Correct answer: D, strong wind can prevent a cool, moist layer from remaining near the surface. Dew usually forms on clear, calm nights when the ground loses heat by radiation and the air immediately above it becomes cool and moist. With strong wind, air is continually mixed and replaced. This mixing can bring relatively warmer or drier air into contact with the surface and can carry away the near-surface moisture before it reaches saturation. Therefore, the surface may not remain cool and moist long enough for droplets to form. A is wrong because wind does not turn land into sea. B is wrong because wind cannot switch off the Sun. C is wrong because ordinary strong wind does not turn soil into ice. D correctly describes the atmospheric mixing that makes dew less likely. Memory cue: dew favours cool, calm, moist conditions; strong mixing is unfavourable.

Related tags

DewStrong WindMoist LayerNight CoolingForms Of Condensation: DewFrostFogAnd MistForms Of Condensation Dew Frost Fog And MistWater In The AtmosphereGeography

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