1.

Among the gases (i) – (v), the gases that cause greenhouse effect are : (i) CO_2(ii) H_2 O(iii) CFC(iv) O_2(v) O_3

Answer»

i, II, iii, and iv
i, iii, iv and v
i and iv
i, ii, iii and v

Solution :`CO_2 , O_3 , H_2 O` VAPOURS and CFC.s are green HOUSE GASES.


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