Match the following:

Column – I

Column- II

 A. CFC

(i) Green House Effect

 B. CO2

(ii) Most available gas

 C. N2

(iii) Poisonous gas (Toxic gas)

 D. CO 

(iv) Ozone depletion

1
A - I, B - II, C - III, D - IV
2
A - III, B - I, C - IV, D - II
3
A - III, B - IV, C - II, D - I
4
A - IV, B - I, C - II, D - III
5
Not Attempted

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