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If moisture is high but the surface is very warm, what will hinder dew formation?

Answer and explanation

Correct answer: The surface has not cooled to the dew point

Correct answer: A. Dew forms when the surface, and the air touching it, cools to the dew point—the temperature at which the air becomes saturated and water vapour changes into liquid droplets. High moisture makes dew formation easier, but it is not sufficient by itself. A very warm surface may remain above the dew point, so vapour does not condense on it. B is wrong because the question already states that moisture is high. C is wrong because frost is solid ice and requires freezing conditions; it does not form merely because humidity is high. D is wrong because moisture supplies the vapour needed for condensation rather than stopping it. Memory cue: moisture is the material; cooling to the dew point is the trigger.

Related tags

DewDew PointCondensationWarm SurfaceForms Of Condensation: DewFrostFogAnd MistForms Of Condensation Dew Frost Fog And MistWater In The AtmosphereGeography

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