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31/10/2021 5:31 pm
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Acid rains are produced by
(1) excess release of carbon monoxide by incomplete combustion
(2) excess emissions of NO2 and SO2 from burning fossil fuels
(3) excess formation of CO2 by combustion and animal respiration
(4) excess production of NH3 by industry and coal gas
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31/10/2021 5:32 pm
Correct answer: (2) excess emissions of NO2 and SO2 from burning fossil fuels