Question

explain the composition of the air ?

Answer 1

Earth have three Composition: Crust mentel and core

Outer Layer of Earth where we live is crust .
The Second layer of Earth is mente it is Reach in Iron and aluminium .
The inner layer is core.

Answer 2

The air in our atmosphere is composed of molecules of different gases. The most common gases are (1)Nitrogen=78%,(2)oxygen=21%,(3)argon almost=1%