A) caused only by \[C{{O}_{2}}\]
B) caused by \[C{{O}_{2}}\], CFCs, \[C{{H}_{4}}\] and \[N{{O}_{2}}\] gases
C) caused by combination of many gases
D) none of these
Correct Answer: B
Solution :
Green-house effect is caused by \[C{{O}_{2}},\,CFCs\,\,C{{H}_{4}}\] and \[N{{O}_{2}}\].
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