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Which statement best explains the visibility-based difference between mist and fog?

Answer and explanation

Correct answer: Fog reduces visibility more than mist

Correct answer: D. Both mist and fog consist mainly of very small water droplets suspended in air, so both can make the atmosphere look hazy and can reduce visibility. The usual distinction is based on density and the resulting visibility: fog is denser and causes a greater reduction in visibility, whereas mist is thinner and allows a longer viewing distance. A reverses this relationship. B is incorrect because their density and visibility effects are not necessarily identical; the terms distinguish relatively weaker and stronger obscuration. C is incorrect because fog droplets are essential to its formation. The droplets form when moist air cools to saturation, although the droplets remain suspended rather than immediately falling as rain. Memory cue: mist is the lighter veil; fog is the thicker veil. Do not confuse fog with smoke: fog is made chiefly of condensed water droplets, while smoke is made of particles from combustion.

Related tags

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

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