UPSC Prelims
Environment / рдкрд░реНрдпрд╛рд╡рд░рдг
Theme:
POLLUTION AND DEGRADATION
Q 1998, POLLUTION AND DEGRADATION
Acid rain is caused by pollution of environment by
1. рдПрд╕рд┐рдб рд░реЗрди рдкрд░реНрдпрд╛рд╡рд░рдг рдХреЗ рдкреНрд░рджреВрд╖рдг рдХреЗ рдХрд╛рд░рдг рд╣реЛрддреА рд╣реИред
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