A) excessive release of \[C{{O}_{2}}\] by burning of fossil fuels
B) excessive concentration of \[S{{O}_{2}}\] and \[N{{O}_{2}}\]in air by deforestation
C) excessive release of \[S{{O}_{2}}\]by industries and coal gas
D) deforestation, population explosion and release of \[C{{O}_{2}}\]by automobile exhausts
Correct Answer: C
Solution :
Acid rains are mainly due to \[\text{S}{{\text{O}}_{\text{2}}}\]and \[\text{S}{{\text{O}}_{\text{3}}}\], \[{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}\]causing 60-70% of total acid raining.\[\text{S}{{\text{O}}_{\text{2}}}\]and\[\text{S}{{\text{O}}_{\text{3}}}\]are mainly released by industries and coal\[\text{ga}{{\text{s}}^{\text{2}}}\].
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