This lesson provides an introduction to the treatment of drinking water to remove harmful or distasteful substances. Topics include the history of treatment and a brief listing of treatment processes. Students can...
From the United States Environmental Protection Agency comes this web site titled "Coastal Watershed Factsheets." Containing information on beaches, near shore waters, coral reefs and estuaries this page is a valuable...
North Dakota State University presents the theories behind reverse osmosis and how it affects household water supplies. The site addresses the impurities which are removed by this process. It also speaks of testing, the...
This web page, part of the Irrigation Management Series, will define and explain several common efficiency terms in use for irrigation systems and show how these terms apply to some common irrigation situations. In PDF...
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