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Why is visibility in mist not as low as in fog?

Answer and explanation

Correct answer: Because the effect of droplets in mist is generally less

Direct answer: A, because the concentration and light-scattering effect of droplets in mist are generally lower than in dense fog. Mist is also made of tiny suspended water droplets, so it certainly contains moisture. However, it is less dense or less optically obscuring than fog, and objects can usually be seen from a greater distance. Option A correctly points to the weaker effect of the droplets on visibility. B is wrong because moisture is essential for mist; without water droplets or moisture, mist could not exist. C is wrong because mist is an atmospheric condensation phenomenon, not smoke or vapour produced only by fire. D is wrong because stones have no role in forming mist. The exact visibility boundary can vary with observation and weather conditions, but the useful school-level distinction is that fog reduces visibility more strongly than mist. Memory cue: fog is thicker, mist is lighter; compare them mainly by visibility.

Related tags

MistVisibilityFog ComparisonWater DropletsForms Of Condensation: DewFrostFogAnd MistForms Of Condensation Dew Frost Fog And MistWater In The AtmosphereGeography

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