Question

air has no shape of its own give scientific reason

Answer 1

in air the molecules are loosely packed so they can move freely in all directions.when it moves it's shape changes as air is present all over the world.

Answer 2

EXPLANATION:

Air or any other gases, in particular, has no distinctive shape or volume. This is because the ‘molecules of air’ are not arranged in a tight pattern. In fact, it is free and takes the shape of anything that is holding it.  

For example, the ‘air inside the balloon’ is shaped like a balloon and is compressed but it has density.  

Its shape and volume will always change however, due to the energetic molecule, they never have their own shape.