Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Biology Human body
The air we inhale is mixture of gases. Which of the following gases in the mixture is highest in percentage?
1
Carbon dioxide
2
Nitrogen
3
Oxygen
4
More than one of the above
5
None of the above