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What is the main difference between absolute humidity and relative humidity?

Answer and explanation

Correct answer: Absolute humidity gives the actual amount, whereas relative humidity gives the percentage of moisture compared with capacity

Correct answer: A. Absolute humidity is the actual mass of water vapour present in a given volume of air, commonly expressed as a mass per unit volume. Relative humidity is a comparison: it expresses the amount of vapour actually present as a percentage of the maximum amount the air can hold at that temperature. Temperature matters because warm air can hold more water vapour than cold air. Thus the same actual vapour amount can produce different relative humidities at different temperatures. B is wrong because humidity is not rainfall. C is wrong because absolute humidity does not measure cloud height. D is wrong because relative humidity does not indicate wind direction. Memory cue: absolute means actual amount; relative means a percentage compared with capacity.

Related tags

GeographyAbsolute HumidityRelative HumidityAtmospheric MoistureHumidityEvaporationAnd CondensationHumidity Evaporation And CondensationWater In The AtmosphereClass 12 Mcq

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