Teaching Bihar Sakshamta Pariksha (Niyojit Shikshak) Mock Test 2024 General Knowledge Ecology and Environment Environment Problems
Which of the following does not contribute to ozone layer depletion?
1
Chlorofluorocarbons (CFC)
2
Carbon tetrachloride (CCl4)
3
Methyl chloroform (CH3CCl3)
4
Nitrogen