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Unformatted text preview: these materials mix with water. What is acid rain? collective term used to refer to all acid forming processes What is the pH of "normal" rain? between 5.6 and 5.7 Why is normal rain naturally slightly acidic? formation of carbonic acid when carbon dioxide reacts with atmospheric moisture What is the scope of the acid rain problem? Global, mostly in Canada, England, Germany, France, Scandinavia, US What kind of damage does acid rain cause to man-made materials? erosion of buildings and monuments made of limestone and corrosion of metal surfaces What kind of damage does acid rain cause to ecosystems? In terresitrial: link between tree decline and acid rain, cause soil become acidic and aluminum interferes with ability of plant roots to absorb nutrients In aquatic: healthy lakes have pH ~6.0. increase in acidity leads to progressive loss of many kinds of organisms 1...
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- Spring '08