Question

This is a form of condensation high up in the clouds:​

Answer 1

Answer:

When the temperature of an air mass containing a large quantity of water vapour falls all of a sudden, condensation takes place within itself on fine dust particles. So, the fog is a cloud with its base at or very near to the ground. Because of the fog and mist, the visibility becomes poor to zero.

Answer 2

Explanation:

Dew, fog and clouds result even when the temperature is higher than the freezing point. Forms of condensation may also be classified on the basis of their location, i.e. at or near the earth's surface and in free air. Dew, white frost, fog and mist come in the first category, whereas clouds are in the second category.