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If dew on leaves and frost on metal occur on the same night, what is the deeper explanation?

Answer and explanation

Correct answer: Different surfaces cool at different rates and give different final states

Correct answer: C. Condensation depends on the temperature reached by a particular surface, not simply on the temperature reported for the whole night. Metal may lose heat quickly and become cold enough for water to freeze, producing frost. Leaves may cool differently or remain just above freezing, allowing liquid water droplets, or dew, to remain. The exact result also depends on local exposure, surface properties and moisture. A is wrong because water vapour can reach metal through the surrounding air. B is wrong because frost can form on any exposed surface, including vegetation, when conditions permit. D is wrong because cooling and freezing temperature are central to dew and frost. Memory cue: same night does not mean same surface temperature.

Related tags

DewFrostSurface CoolingFreezingForms Of Condensation: DewFogAnd MistForms Of Condensation Dew Frost Fog And MistWater In The AtmosphereGeography

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