"3c3b37d4-b934-4057-b8e4-438523ae88e3" . "MOLECULAR NITROGEN"^^ . "Nitrogen (N2) is a colorless, tasteless, odorless gas which makes up 78.1%\nof the atmosphere. Atmospheric nitrogen is converted by nitrogen fixation\nand nitrification into compounds used by plants and animals. In the far\nupper atmosphere, N2 is broken down when large numbers of energetic\nsecondary electrons are produced and available to react with the N2. This\nleads to the eventual production of NO. (Crutzen, Paul J. and T.E.\nGraedel, Atmospheric Change. W.H. Freeman and Company, New York, 147.)\n(Webster's New World Dictionary. Prentice Hall, New York, 918.)"^^ . .