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ACID RAIN SANYM PARITOVA MIRAS INTERNATIONAL SCHOOL November 2007 Essays plan: 1. Introduction a) What is my essay about? b) How did I find the information? 2. Investigation a) What does acid "rain" mean? b) What causes acid rain? c) The effects of acid rain d) How to protect from it? 3. Conclusion a) How my essay is linked to AOI? b) My attitude toward it 4. Bibliography Introduction My essay is about acid rain. I am going to describe Investigation What does acid "rain" mean? The term "acid rain" is used for meaning all kind of meteorological drafts (rain, snow, fog) which pH is lower than 7. Distilled water, which contains no carbon dioxide, has a neutral pH of 7. Liquids with a pH less than 7 are acidic, and those with a pH greater than 7 are bases or alkalies. Unpolluted rain has a slightly acidic pH of about 5.0, because released in the process of human activity sulfur dioxide (SO2) and oxides of nitrogen (N OX)...

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