Explanation - FOG

FOG

     Fog occurs when damp air above the surface of the earth is cooled to the point at which it condenses. Of the two types of fog, advection fog occurs along the ocean coast or near the river or lakes. This type of fast-moving fog, which may cover vast areas, ovvurs when warm winds blow across a cold surface of land or water vapor condense into fog. Radiation fog is quiet different from advection fog. It is immobile cloud-like moisture earth’s warmth escapes into the upper atmosphere.