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What is dew point temperature?

Answer and explanation

Correct answer: Temperature at which air becomes saturated and condensation begins

Correct answer: A. Dew-point temperature is the temperature to which air must be cooled, with its moisture content unchanged, for the air to become saturated. At this point, relative humidity reaches 100 percent. If cooling continues or suitable surfaces are available, excess water vapour changes into tiny liquid droplets; this is condensation and may produce dew. A is correct because it includes both saturation and the beginning of condensation. B is wrong because dew point is not related to freezing the sea. C refers to the daily maximum temperature, which may occur far above or below the dew point. D is wrong because soil temperature is a separate measurement and is not the definition. Memory cue: “dew point” is the cooling point at which dew-forming condensation can start.

Related tags

GeographyDew PointAir SaturationCondensationHumidityEvaporationAnd CondensationHumidity Evaporation And CondensationWater In The AtmosphereClass 12 Mcq

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