Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Knowledge Ecology and Environment Environmental pollution
Which of the following is NOT a green house gas?
1
Carbon dioxide
2
Methane
3
Hydrochlorofluorocarbons
4
Oxygen
5
None of the above