Grade 12th pass7 grade science
Hritik tested rainwater and found a pH of 5-6 due to presence of H+ ions formed by reaction of rainwater with carbon dioxide. When pH of the rainwater drops below 5-6, then it is called acid rain. Oxides of nitrogen and sulphur are acidic in nature. Burning of fossil fuels such as coal and oil in power stations and furnace produce oxides of nitrogen and sulphur. He told all of his classmates living nearby to use bicycle instead of school bus so as to reduce air pollution and prevent acid rain. (a) Which acid is formed by sulphur dioxide in the presence of air? (b) Which acid is formed by nitrogen dioxide in the presence of air? (c) Why is acid rain harmful to agriculture, trees and plants? (d) How can we prevent from acid rain? (e) What values are possessed by Hrithik?
Hritik tested rainwater and found a pH of 5-6 due to presence of H+ ions formed by reaction of rainwater with carbon dioxide. When pH of the rainwater drops below 5-6, then it is called acid rain. Oxides of nitrogen and sulphur are acidic in nature. Burning of fossil fuels such as coal and oil in power stations and furnace produce oxides of nitrogen and sulphur. He told all of his classmates living nearby to use bicycle instead of school bus so as to reduce air pollution and prevent acid rain. (a) Which acid is formed by sulphur dioxide in the presence of air? (b) Which acid is formed by nitrogen dioxide in the presence of air? (c) Why is acid rain harmful to agriculture, trees and plants? (d) How can we prevent from acid rain? (e) What values are possessed by Hrithik?
