Question

*0.6.
What are the various constituents of air? Write their uses.
Ans.​

Answer 1

Answer:

1. dry air contains 78.09% nitrogen
2. 20.95% oxygen
3. 0.93% argon
4. carbon dioxide, and small amounts of other gases.

It also contains:

water vapor, on average around 1% at sea.

level, and 0.4% over the entire atmosphere.