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How does strong wind help increase evaporation?

Answer and explanation

Correct answer: It removes moist air near the surface

Correct answer: A. Evaporation is favoured when the air immediately above a wet surface is able to accept more water vapour. A strong wind mixes or replaces the moist boundary layer with comparatively drier air. This maintains a larger vapour-pressure or humidity gradient between the water surface and the air, so more molecules can escape into the atmosphere. A is correct. B is wrong because wind does not normally freeze liquid water. C is wrong because wind often lowers near-surface humidity rather than making it always 100%. D is wrong because wind does not block the Sun’s energy; solar heating is a separate factor. Wind cannot guarantee evaporation in every condition, but it generally increases transfer when moisture and energy are available. Memory cue: wind renews the air above the surface.

Related tags

WindEvaporationMoist Boundary LayerHumidity GradientHumidityAnd CondensationHumidity Evaporation And CondensationWater In The AtmosphereGeography

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