The formation of fog

The formation of fog

Fog is a type of cloud that forms close to the surface of the Earth. There are places on the planet that are shrouded in fog during most of the year.

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Geography

Keywords

fog, The formation of fog, cloud, weather, humidity, precipitation, visibility, atmosphere, smog, smoky fog, nature, environmental pollution, geography

On-screen labels

Fog: visibility is less than 1 km, Hot air: as much as 30 g/m3 of water vapour, Cold air: no more than 2–3 g/m3 of water vapour, smoke + fog = smog
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