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Why may dew droplets disappear quickly when strong wind begins after dew formation?

Answer and explanation

Correct answer: Wind removes the moist air layer near the surface and increases evaporation.

Answer: A. Dew is liquid water condensed on a cool surface when nearby air reaches its dew point. After dew forms, strong wind mixes the moist air immediately above the surface with relatively drier air. This keeps moving water vapour away from the droplets and maintains a larger vapour-pressure difference, so evaporation becomes faster. The droplets therefore shrink and may disappear, especially if the surface is no longer cool enough to support condensation. B is wrong because wind cannot turn water into rock. C is wrong because wind does not switch off sunlight. D is wrong because dew and frost are surface deposits, not processes that wind converts into rain. Memory cue: wind removes moisture; moving air usually speeds drying.

Related tags

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

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