Multiple choice

The fog formed as a result of transport of relatively warmer moist air over cold ground is called

  1. advection fog

  2. radiation fog

  3. steaming fog

  4. cold fog
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A Correct answer
Explanation

Advection fog forms when relatively warm and moist air moves horizontally (advects) over a colder surface such as cold ground, water, or snow. The cold surface cools the air from below to its dew point, causing condensation and fog formation. This differs from radiation fog (formed by ground cooling at night) and steam fog (formed when cold air moves over warm water).

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