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Why may evaporation not appear very rapid in coastal areas despite abundant water?

Answer and explanation

Correct answer: High existing vapour in air reduces the evaporative gradient

Correct answer: A. Evaporation occurs when water molecules leave a surface, but its rate depends not only on the amount of water available. The air above the surface must also have room to accept more water vapour. In a humid coastal environment, the air already contains considerable vapour, so the difference between the vapour pressure at the water surface and in the air—the evaporative gradient—is smaller. A is correct. B is false because seawater contains abundant water. C is false because coasts receive solar energy. D is the opposite of coastal humidity. Memory cue: water supply alone is not enough; dry air, heat, and air movement also matter.

Related tags

Coastal HumidityEvaporation GradientMaritime AirHumidityEvaporationAnd CondensationHumidity Evaporation And CondensationWater In The AtmosphereGeography

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