Correct Answer:
B. Sulfur dioxide and Nitrogen oxide in atmosphere
The correct answer is Sulfur dioxide and Nitrogen oxide in atmosphere. Acid rain is primarily caused by the emission of these two gases into the atmosphere, mainly from the burning of fossil fuels by power plants, factories, and vehicles. Once released, these pollutants react with water, oxygen, and other chemicals to form sulfuric acid and nitric acid, which then fall to the Earth as acid rain.
- Sulfur dioxide and potassium nitrate is incorrect because potassium nitrate is not a primary atmospheric pollutant causing acid rain.
- Both A and B is incorrect as option A contains an inaccurate component.
- None of these is incorrect because the primary causes are clearly identified.