Correct answer is :- Air pollution
When sulfur dioxide (SO2) and nitrogen oxides (NO2) are released into the atmosphere, they are carried by wind and air currents and eventually form acid rain. Acids made of sulfuric and nitric compounds are produced when the SO2 and NOX react with oxygen, water, and other substances. Before dropping to the ground, they then combine with water and other substances.
While volcanic eruptions and other naturally occurring processes do provide a minor amount of the SO2 and NO2 that create acid rain, fossil fuel combustion accounts for the majority of it.
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Answer: The answer is A Air pollution
Explanation: Air pollution is a necessary ingredient for acid rain to occur.
Air pollution is contamination of the indoor or outdoor environment by any chemical, physical or biological agent that modifies the natural characteristics of the atmosphere. Household combustion devices, motor vehicles, industrial facilities and forest fires are common sources of air pollution.
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