Question

Exercises 1. What is the composition of air?​

Answer 1

Answer:

Air is mostly gas

It's a mixture of different gases. The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen.

Answer 2

Answer:

air os mainly mixture of several gases

nitrogen=78%

oxygen=21%

co2=0.3%

and remaining % is like argon ,neon ,dust ,smoke