Question

Name four important constituents of air and state
their appropriate percentage in composition.​

Answer 1

Explanation:

The most important constituents of air are nitrogen (78.3%), oxygen (20.9%), carbon dioxide (0.03%) and water vapour.

Answer 2

Answer:

no.1 nitrogen, no.2 oxygen, no.3 argon no.4 carbon dioxide

Explanation:

Nitrogen 78% ,  oxygen21% , argon 1% and carbon dioxide 0.003%