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Question


Acid rain is due to increase in atmospheric concentration of 


Options:
A .   ozone and dust
B .   CO2 and CO
C .   SO2 and CO
D .   SO2 and NO2
Answer: Option D
:
D

SO2 and NO when present in large quantities dissolved in water vapour form sulphuric acid and nitric acid which dissolve in rainwater resulting in acid rain (H2SO4) and (HNO3) which in turn causes great damage to forests and vegetation.



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