state gov Maharashtra Talathi (तलाठी भरती) Mock Test 2023 General Science Biology Ecology & Environment
Ozone layer gets destroyed by:
a. NO and NO2 from natural sources.
b.Cl atoms from chlorofluorocarbons.
Which of the above statements is/are correct?
1
Only a
2
Only b
3
Both a and b
4
None of the above