1![Microsoft Word - Title_pg.doc Microsoft Word - Title_pg.doc](https://www.pdfsearch.io/img/0c8821fe630e4a3155b839a04079c3ed.jpg) | Add to Reading ListSource URL: www.trade.govLanguage: English - Date: 2011-10-17 11:53:46
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2![2010 Minerals Yearbook NITROGEN [ADVANCE RELEASE] U.S. Department of the Interior U.S. Geological Survey 2010 Minerals Yearbook NITROGEN [ADVANCE RELEASE] U.S. Department of the Interior U.S. Geological Survey](https://www.pdfsearch.io/img/7944e6e0fd9ad9fba1d4e857cea21a6d.jpg) | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-10-19 13:49:44
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3![NITROGEN By George A. Rabchevsky Nitrogen gas comprises almost 80% of the air and occurs in the protein matter of all living things, in many organic compounds, in ammonia and ammonia salts, and in nitrate mineral deposit NITROGEN By George A. Rabchevsky Nitrogen gas comprises almost 80% of the air and occurs in the protein matter of all living things, in many organic compounds, in ammonia and ammonia salts, and in nitrate mineral deposit](https://www.pdfsearch.io/img/767a8681ecbee7e1806536940a26982c.jpg) | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-04-02 08:20:38
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4![Nitrogen (fixed)--ammonia Nitrogen (fixed)--ammonia](https://www.pdfsearch.io/img/139734359757bec5555bf43b76239043.jpg) | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-03-29 15:16:48
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5![Nitrogen--fixed (ammonia) Nitrogen--fixed (ammonia)](https://www.pdfsearch.io/img/1c0ed47c58220565ac60a4aef80f6c58.jpg) | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2006-01-18 15:20:20
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6![](https://www.pdfsearch.io/img/c5e1f227a6099db26309a13fd11c6c38.jpg) | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2005-01-12 11:22:23
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