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Air becomes supersaturated
- Just the same as clouds in the sky, fog forms when the air becomes supersaturated. Supersaturated air is air that can no longer hold moisture in the form of vapor. When this happens, waterfalls out of the air, forming a fine mist of water droplets. If the water becomes dense enough, the droplets will turn into rain.
www.scifacts.net/weather/fog-cause-conditions-types/
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But the basics of fog are the same throughout these varied categories: fog is simply droplets of water vapor suspended in the air near the ground. More clearly stated, fog is a cloud that is in contact with the ground. Fog is what happens when we get up close and personal with clouds.
Fog appears when water vapor (water in its gaseous form) condenses. During condensation, molecules of water vapor combine to make tiny water droplets that hang in the air. Sea fog, which shows up near bodies of saline water, is formed as water vapor condenses on bits of salt.
What causes fog? Fog is caused by tiny water droplets suspended in the air. The thickest fogs tend to occur in industrial areas where there are more pollution particles in the air...
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How is fog formed? - BBC Science Focus Magazine
Find out what fog is, how it is formed and the difference between fog and mist with this BBC Bitesize Scotland article for First and Second Level CfE.
Oct 14, 2013 · The most common form of fog, known as radiation fog, typically occurs on clear nights as the earth's surface cools moist air immediately above it.
Aug 27, 2024 · Fog, cloud of small water droplets that is near ground level and sufficiently dense to reduce horizontal visibility to less than 1,000 metres (3,281 feet). The word fog also may refer to clouds of smoke particles, ice particles, or mixtures of these components.
