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Why does relative humidity alone not give a complete picture of the moisture in air?

Answer and explanation

Correct answer: Because it is a temperature-dependent percentage, not a direct measure of the actual amount of water vapour

Correct answer: A. Relative humidity is the actual water-vapour pressure divided by the saturation vapour pressure at the same temperature, expressed as a percentage. Since saturation vapour pressure changes with temperature, the same relative humidity can correspond to different actual amounts of water vapour in warm and cool air. Measures such as dew point or specific humidity can provide additional information about moisture.

Related tags

Relative HumidityDew PointMoistureHumidityEvaporationAnd CondensationHumidity Evaporation And CondensationWater In The AtmosphereGeographyClass 12 Mcq

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