Acid rain (Acid Rain), measured from the mechanical valve, called the pH value, which is even less show up, there is only pure water pH equal 7, normal rain is slightly acidic because carbon dioxide dissolves. Best acid rain has a pH lower than 5.6 acid rain, most are found in the central area of industry: Europe. America, Japan and China. Takonkrot can be in the form of rain, snow and fog affect plants, animals, and buildings.
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