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Which statement gives the correct sequence of dew formation?

Answer and explanation

Correct answer: Surface cooling then dew point then saturation then droplets

Direct answer: A, surface cooling, then dew point, then saturation, then droplets. At night or under suitable conditions, a surface loses heat and cools. The air immediately touching that surface also cools. When its temperature falls to the dew point, the air becomes saturated with the water vapour already present. Further cooling, or reaching the appropriate saturation condition, causes some vapour to condense on the surface as liquid droplets called dew. The sequence in A follows the physical chain in the correct order. B contains unrelated earthquake motion and dryness, which oppose or do not explain dew. C begins with heating and unsaturation, conditions that generally discourage condensation, and it also names frost rather than ordinary liquid dew. D includes zero pressure, which is not a normal requirement for dew formation. Memory cue: cool the surface, reach dew point, become saturated, then see droplets. The dew point is a temperature, not a separate substance or a type of precipitation.

Related tags

DewSequenceDew PointSaturationForms Of Condensation: DewFrostFogAnd MistForms Of Condensation Dew Frost Fog And MistWater In The AtmosphereGeography

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