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What is absolute humidity?

Answer and explanation

Correct answer: Actual amount of water vapour in air

Correct answer: A, the actual amount of water vapour in air. Absolute humidity measures how much water vapour is actually present in a given volume of air. It is commonly expressed as mass of water vapour per unit volume of air, such as grams per cubic metre. The idea is about the real quantity of vapour, not about rainfall, clouds, or wind. A is correct because it states the defining meaning. B is wrong because the number of rainy days describes rainfall frequency, not atmospheric moisture content. C is wrong because cloud colour is an appearance-related observation and does not define humidity. D is wrong because wind direction tells where air is moving, not how much vapour it contains. Do not confuse absolute humidity with relative humidity: relative humidity is a percentage comparing present vapour with the maximum possible at that temperature, whereas absolute humidity refers to the actual amount. Memory cue: absolute means the actual quantity present.

Related tags

GeographyAbsolute-HumidityWater-VapourHumidityEvaporationAnd CondensationHumidity Evaporation And CondensationWater In The AtmosphereClass 12 Mcq

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