A fog is a kind of cloud, which is found close to the ground or sea surface instead of sky. It is formed when cold air comes in contact with the warm surface of water or land. It is mostly formed at night or in the early morning over small water bodies or lowlands. During the autumn season, fog appears frequently. In autumn nights, as the Earth’s surface cools, the air close to the surface also becomes cool. When this cool air comes in contact with the warm and moist air above it, fog is formed.
What is Fog?
