Question

Which one of the following does not deplete ozone layer?
a)NO
b)N2O
c)CO2
d)CFC

Answer 1

the answer is d. CFC

Answer 2

Chlorofluorocarbons (CFCs) and other halogenated ozone depleting substances (ODS) are mainly responsible for man-made chemical ozone depletion. The total amount of effective halogens (chlorine and bromine) in the stratosphere can be calculated and are known as the equivalent effective stratospheric chlorine (EESC).

option (d) CFC


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