Question

What is the amount of air present on earth?

Answer 1

Answer:

Explanation:

78 % nitrogen, 20% oxygen, 1%carbon dioxide, 1%another gas

Answer 2

Answer:

Explanation:

It contains roughly 78 percent, nitrogen 21 percent, oxygen 0.79 percent,argan and CO2 0.04 percent trace amount of other gases and water vapour. The mixture of gases commonly known as air.