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If air is moist but wind is very strong why may less dew form?

Answer and explanation

Correct answer: Strong wind prevents a stable cool moist layer near the surface

Correct answer: A. Dew develops most readily when a surface cools and the air immediately next to it remains sufficiently moist and relatively calm. Strong wind mixes the air near the surface with air from above and prevents a stable, cool, moist layer from remaining in contact with the surface for long. This can reduce the local conditions needed for condensation, even when the general air is humid. A says may form less dew, not that strong wind makes dew impossible in every situation. B is wrong because wind does not always freeze water vapour; ice formation requires suitable temperatures. C is physically unrelated, and D is impossible as an explanation of dew. Memory cue: dew favours a cool surface and calm air; strong mixing is usually unfavourable.

Related tags

DewStrong WindStable AirCondensationForms Of Condensation: DewFrostFogAnd MistForms Of Condensation Dew Frost Fog And MistWater In The AtmosphereGeography

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