Question

why the clouds fly on sky.​

Answer 1

Answer:

The water and ice particles in the clouds we see are simply too small to feel the effects of gravity. As a result, clouds appear to float on air. Clouds are composed primarily of small water droplets and, if it's cold enough, ice crystals.

Answer 2

Answer:

clouds generally form, survive and grow in air that is moving upward. Rising air expands as the pressure on it decreases and that expansion into thinner, high attitude air causes cooling.