AIR-THE BREATH OF LIFE
Composition of air
S.No. |
Gas |
Percentage (%) |
1 |
Nitrogen |
78 |
2 |
Oxygen |
21 |
3 |
Carbon dioxide |
0.03 |
4 |
Water vapours |
Varies |
5 |
Other gases |
Traces (overall 0.1% ) |