1.

Acid rain is caused due to...................

A.  \[C{{O}_{2}},{{O}_{2}},S{{O}_{2}}\]       
B.  \[C{{O}_{2}},N{{O}_{2}},{{H}_{2}}\]
C.  \[S{{O}_{2}},{{N}_{2}},{{O}_{2}}\]       
D.      \[C{{O}_{2}},S{{O}_{2}},N{{O}_{2}}\]  
Answer» E.


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