Recent reports of acid rain in industrial cities are due to the effect of atmospheric pollution by
- AExcessive release of $NO_2$ and $SO_2$ by burning of fossil fuels
- BExcessive release of $CO_2$ by burning of fuel like wood and charcoal,cutting of forests and increased animal population
- CExcessive release of $NH_3$ by industrial plants and coal gas
- DExcessive release of $CO$ in atmosphere by incomplete combustion of coke,charcoal and other carbonaceous fuels in paucity of oxygen
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