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The top documents tagged [tg n flows]
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THE NITROGEN CYCLE. TOPICS FOR TODAY 1.The Nitrogen Cycle 2.Fixed Nitrogen in the Atmosphere 3.Sources of NOx 4.What about N 2 O? 5.Nitrogen Cycle: on
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CHAPTER 6: GEOCHEMICAL CYCLES Most abundant elements: oxygen (in solid earth!), iron (core), silicon (mantle), hydrogen (oceans), nitrogen, carbon, sulfur…
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