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What is fog essentially?

Answer and explanation

Correct answer: Cloud formed near the ground

Correct answer: A, a cloud formed near the ground. Fog is made of very small water droplets suspended in air close to the Earth's surface. Water vapour cools, reaches saturation, and condenses around tiny particles in the air. Because these droplets remain near the ground, they reduce visibility for people, vehicles, and aircraft. Option A is correct because fog has the same basic nature as a cloud, but its base is at or very near the surface. Option B is snow or ice on a high mountain, not suspended droplets near the ground. Option C is moving water in a river, not an atmospheric phenomenon. Option D is the periodic rise and fall of sea level caused mainly by gravitational forces, not condensation. Memory cue: fog is a cloud with its feet on the ground.

Related tags

GeographyFogCondensationVisibilityForms Of Condensation: DewFrostAnd MistForms Of Condensation Dew Frost Fog And MistWater In The AtmosphereClass 12 Mcq

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