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After sunrise, which common process can reduce both dew and fog?

Answer and explanation

Correct answer: Evaporation

Direct answer: A, evaporation. Dew is liquid water deposited on a cool surface, while fog consists of very small liquid droplets suspended near the ground. After sunrise, solar heating raises the temperature of the surface and nearby air. When the air becomes warmer, it can hold more water vapour, and the deposited or suspended liquid water can change into vapour. As a result, dew dries and fog may become thinner or disappear. Option A is correct because evaporation changes liquid water into water vapour and is promoted by heating. B, an earthquake, is ground movement and does not normally remove atmospheric droplets. C, salinity means the amount of dissolved salt and is not the process removing dew or fog. D, weathering is the breakdown of rocks at or near Earth’s surface and is unrelated here. Memory cue: warming plus liquid water usually suggests evaporation; cooling plus vapour suggests condensation.

Related tags

DewFogEvaporationSunriseForms Of Condensation: DewFrostAnd MistForms Of Condensation Dew Frost Fog And MistWater In The AtmosphereGeography

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