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What % of the atmosphere is nitrogen? A) do I have to answer? B) 0 % C) 27.56 % D) 75 % E) 79 %

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Presentation on theme: "What % of the atmosphere is nitrogen? A) do I have to answer? B) 0 % C) 27.56 % D) 75 % E) 79 %"— Presentation transcript:

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2 What % of the atmosphere is nitrogen? A) do I have to answer? B) 0 % C) % D) 75 % E) 79 %

3 a) The placing of leeches on people in the name of medical experimentation b) When bacteria convert nitrogen from one form to another c) When nitrates run into groundwater d) It’s a synonym for nitrogen fixation

4  A) a word that I can’t pronounce  B) when heterotrophic bacteria break NO3- into N2 or N2O  C) when ammonium is used in small amounts by plants  D) when plants modify NH3 to NH4

5 a) N1 and N2 b) NH4 and NO3- c) Liquid and gaseous d) I have no clue

6  Name the three major stores of nitrogen.

7 a) Increased deposition of nitrogen from atmospheric sources because of fossil fuel combustion and forest burning b) Livestock ranching c) Increased rates of denitrification d) All of the above

8  How do animals acquire their nitrogen?

9  Why is there a nitrogen cycle? Why can’t we just inhale and get our nitrogen fix?


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