Acid rains are produced by

(a) excess NO2 and SO2 from burning fossil fuels

(b) excess production of NH3 by industry and coal 

gas

(c) excess release of carbon monoxide by incomplete 

combustion

(d) excess formation of CO2 by combustion and 

animal respiration.

1 Answer

Answer :

(a) excess NO2 and SO2 from burning fossil fuels

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