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| Did you know that nitrogen,
another element vital to life, has a cycle just like the water cycle? Check out the poster
below to learn more, then read the 'Nitrates and Nitrites' entry in our Water Quality Factors reference. (Nitrates and nitrites are forms
of nitrogen combined with oxygen.) Note: sorry, but this
poster is not available for ordering. Click for 700X600
pixel version. |
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This page was last updated 08/16/06 |
