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Nitrogen Cycle By Nathan McClurg and Joey Andrada.

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1 Nitrogen Cycle By Nathan McClurg and Joey Andrada

2

3 Key Terms Denitrification –removal of nitrogen or nitrogen compounds –Conversion of nitrogen to gaseous form

4 Precipitation Process of rain, sleet, snow, hail, etc.

5 Ammonium Form of nitrogen contained in fertilizer generated in soil by breakdown of organic matter NH4

6 Mineralization Organic compounds to inorganic compounds (Organic) Dead plant, animal material (Inorganic) nitrates, carbon dioxide

7 Nitrates Found in plant nutrient and fertilizer Animal feed, manures, and sewage

8 Nitrites NO2 Converted from free ammonia Harmful at any level Converts into nitrates

9 Amount of Nitrogen 78.08% in atmosphere 79% bound nitrogen in lithosphere Mass of nitrogen 20,000,000,000,000 tons in hydrosphere 80% in biosphere

10 Ecological Impact About 90% of the soil Denitrification decreases fertility of plants High concentrates of nitrates are toxic Without Denitrification life would not be possible except near large bodies of water

11 Biological Impact Health effects of nitrogen Environmental effects of nitrogen

12 Bibliography http://www.aquariacentral.com/articles/glossary.shtml http://pnwmg.org/mgglossarya.html www.hubbardbrook.org/6- 12_education/Glossary/Glossary.htmwww.hubbardbrook.org/6- 12_education/Glossary/Glossary.htm www.laurentianvalleytwsp.on.ca/DomesticWaterWellDefi ne.htmlwww.laurentianvalleytwsp.on.ca/DomesticWaterWellDefi ne.html www.aquariacentral.com/articles/glossary.shtml www.biologie.uni-hamburg.de/b-online/e54/54d.htm http://www.lenntech.com/elements-and-water/nitrogen- and-water.htmhttp://www.lenntech.com/elements-and-water/nitrogen- and-water.htm

13 Hyperlinks to Images http://www.gettyimages.com/Creative/Frontdoor/NationalGeographicRM?esource=googUSA_Ima ges_Categories&country=USA&kw=usa+nature_picturehttp://www.gettyimages.com/Creative/Frontdoor/NationalGeographicRM?esource=googUSA_Ima ges_Categories&country=USA&kw=usa+nature_picture http://images.google.com/imgres?imgurl=http://www.windows.ucar.edu/earth/climate/images/nitro gencycle.jpg&imgrefurl=http://www.ucar.edu/news/backgrounders/nitrogen.shtml&h=718&w=720& sz=186&hl=en&start=7&um=1&usg=__aDebNgM_WXcI0zJSF0Z7mXAz- iw=&tbnid=SoJ4GhLez3nuPM:&tbnh=140&tbnw=140&prev=/images%3Fq%3DNitrogen%2BCycle %26um%3D1%26hl%3Den%26rls%3Dcom.microsoft:en-US%26sa%3DG http://filebox.vt.edu/users/chagedor/biol_4684/Cycles/Denit.html http://science.howstuffworks.com/acid-rain.htm http://jedidiah.stuff.gen.nz/wp/?p=15 http://www.esc.ethz.ch/research/efficientconversion/cotwo/co2projects http://www.advancedaquarist.com/2007/8/tips http://eliastobias.net/?cat=1 http://www.desktopscenes.com/Autumn%20Scenes%20from%20Southern%20Vermont%20(2003 )/slides/Rocky%20Forest%20Path.htmlhttp://www.desktopscenes.com/Autumn%20Scenes%20from%20Southern%20Vermont%20(2003 )/slides/Rocky%20Forest%20Path.html http://www.citivestmortgage.com/linkstoResources.html

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