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9 November, 04:29

Where does most of the nitrogen in earths atmosphere come from?

A: fires

B: erosion

C: bacteria

D: the breakdown of carbon dioxide

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Answers (2)
  1. 9 November, 07:48
    0
    C: bacteria.

    Explanation:

    This is the only answer that make sense, because nitrogen fixation is carried out by bacterias, algae and human activity. When organisms use it and release it, nitrogen is suffer a breakdown process, traveling as a gas to the atmosphere.
  2. 9 November, 08:11
    0
    Most of the nitrogen in earths atmosphere comes from bacteria.
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