Question

2. Which constituent of air supports burning?
3. Which gas forms the largest constituent of air?
4. Name the various constituents of air.​

Answer 1

Answer:

1 oxygen

2 nitrogen

3 By volume, dry air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere.

Answer 2

2) oxygen

3) Nitrogen

4) Nitrogen, oxygen, carbon dioxide,etc .