Air Pollution
Air Pollution is not a new topic. It is a problem that we have noticed since the industrial revolution, when trees, houses and cars were covered in soot from the factories. People demanded change then, just as they are demanding it now. With all the talk of acid rain, global warming and ozone depletion it seems hopeless, but it isn't. Everyone can make a difference. After reading this you will understand the causes, effects and possible solutions to the problems of acid rain, global warming and ozone depletion. You will also see that things are bad but not hopeless.
Acid Rain is the term given to any precipitation that is above normal acidity, this includes snow and fog. The acidity or causticity of a solution is measured in pH. A neutral pH is 7, acidic is lower then 7 and a base is greater than 7. The normal pH of rainwater is 5.5 (slightly acidic). In Scotland on April 20, 1974 the rain measured 2.4 and in West Virginia in 1978 the rain had a pH of 2.0!......
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