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The Exxon Valdez oil spill best illustrates a point source water pollution. A nonpoint source delivers pollutants ... Many causes of pollution including sewage and fertilizers contain nutrients such as nitrates and phosphates. In excess levels, nutrients over stimulate the growth of aquatic plants and algae.
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www.umich.edu/~gs265/society/waterpollution.htm
www.umich.edu/~gs265/society/waterpollution.htm
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There are two kinds of water pollution: Organic Industrial Organic includes waste materials such as human and animal excretions and discarded parts of harvested crops and Industrial includes synthetic chemicals and heavy mateal which are usually toxic.
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members.tripod.com/Biology_3/index-2.html
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Explanation of the causes of water pollution ... Oil Pollution ... Water-Treatment.org.uk...
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www.water-pollution.org.uk/causes.html
www.water-pollution.org.uk/causes.html
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Water pollution causes are examined in this article, the second of a four-part series about water pollution. ... Now, on to the more specific categories of water pollution causes...
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www.grinningplanet.com/2005/09-06/water-pollution-cause...
www.grinningplanet.com/2005/09-06/water-pollution-causes-article.htm
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Water pollution refers to the changes in the physical, biological, and chemical conditions of any body of water which harmfully disrupts the balance of the ecosystem. Like any type of pollution, water pollution results when an overwhelming ...
http://ezinearticles.com/?What-is-the-Cause-of-Water-Po...
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If there is something that seriously affects everyone is, Water pollution. Over 40% of the rivers and 46% of the lakes in America are too polluted to fish in, swim in, or maintain marine life. There are many causes of water pollution. Water...
http://ezinearticles.com/?What-Causes-Water-Pollution?&...
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Effects of water pollutio ... 2)Because fish and other marine life cannot live in Hong Kong's dirty water, fishing boats have to travel further to find fish. As a result, we have to pay more for our seafood. ; 3) If marine plants die, the fish which feed on them die.
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www.sagc.edu.hk/chi/work/99004aenv/watere.html
www.sagc.edu.hk/chi/work/99004aenv/watere.html
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a)What are the sources of water pollution? There are many causes for water pollution but two general categories exist: direct and indirect contaminant sources. Direct sources include effluent outfalls from factories, refineries, waste treatment plants etc..
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www.soest.hawaii.edu/GG/ASK/waterpol3.html
www.soest.hawaii.edu/GG/ASK/waterpol3.html
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