Question

The major constituent of atmosphere by present is

Answer 1

Answer:

Nitrogen

Explanation:

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

Explanation:

the atmosphere is composed mainly of nitrogen and oxygen,which make up about 99 per cent of clean,dry air.