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Which is a prominent dynamic factor affecting the rate of evaporation during the hydrological cycle?

Answer and explanation

Correct answer: Wind speed and air mixing

Correct answer: B. Evaporation occurs when water molecules escape from a liquid surface into the air. A layer of moist air can form just above that surface and slow further evaporation. Moving air removes this moist layer and replaces it with comparatively drier air, maintaining a vapour-pressure difference and increasing evaporation. Thus wind speed and air mixing are important dynamic controls. A can influence evaporation, but it is not the intended prominent moving factor in this question. C matters more for water storage and infiltration than for the immediate open-water rate. D acts continuously but does not normally explain short-term changes in evaporation rate. Temperature, humidity, exposed area, and wind also matter. Memory cue: moving air removes moist air and keeps evaporation going.

Related tags

EvaporationWindHydrological CycleThe Living WorldBiologyClass 11 Mcq

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