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Acid Rain 2
Beginning of essay
What is acid rain? Acid rain is caused by emissions of sulphur dioxide and nitrogen oxides. Although natural sources of sulphur oxides and nitrogen oxides do exist, more than 90% of the sulphur and 95% of the nitrogen emissions occurring in eastern North America come from human origin. These prima ....
Middle of essay
....atmosphere, it oxidizes to first form a sulphate ion. It then becomes sulphuric acid as it joins with hydrogen atoms in the air and falls back down to earth in the form of acid rain, snow, or fog. Oxidation occurs the most in clouds and especially in heavily polluted air where other compounds such as ammonia and ozone help to speed up the reaction, changing more sulphur dioxide to sulphuric acid.
When did it start? Since acid rain is emmited from natural sources such as volcanoes, sea spray, ro.... |
| Number of words: 695 |
Approximate pages: 3 |
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