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Rain is called acid rain, when its pH is belowA. 7B. 6.5C. 6D. 5.6

Answer» Correct Answer - D
Normal rainfall has a pH of 5.6-6.5 while acid rain has a pH of less than 5.6. Sulphuric acid and nitric acid are the two main acids, which dissolve in the water in the atmomphere and fall to the ground as acid rain. On an average, `60-70%`


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