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

Answer and explanation

Correct answer: Fog reduces visibility more than mist

Correct answer: B. Both mist and fog consist mainly of tiny water droplets suspended in air, but fog is generally denser and reduces horizontal visibility more strongly than mist. The distinction is based chiefly on the degree of visibility reduction, not on the complete absence or presence of water. A reverses the relationship: mist is usually thinner, so visibility is comparatively better. B is correct because fog normally causes the greater obstruction to seeing distant objects. C is wrong because their density and visibility effects can differ; they are not always identical. D is wrong because mist does contain small water droplets, formed when moist air cools and becomes saturated. In real weather observations, the exact numerical boundary used for fog and mist may vary by convention, so the safe school-level rule is that fog is thicker and visibility is poorer. Memory cue: mist is mild; fog is thicker and blocks the view more.

Related tags

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

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