Unformatted text preview: enough to drink. • Lots of things can contaminate water such as pollution, degradation of soil, human activity, etc that play a key role on the quality of water. • They help to identify common problems. • Tests are preformed in order to protect wildlife living in that ecosystem, so they can live in or consume the water. • Also done to protect human health as well. http://en.wikipedia.org/wiki/Water_quality http://www.grc.nasa.gov/WWW/K-12/fenlewis/test.htm...
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- Fall '09
- Biology, car wash, Chemical oxygen demand, Water quality indicators