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Why is nitrogen fixation necessary? A. Respiration uses nitrogen that is attached to oxygen. B. Plant life cannot use nitrogen atoms unless they are fixed into pairs. C. Most plants use single nitrogen
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Why is nitrogen fixation necessary?

A. Respiration uses nitrogen that is attached to oxygen.
B. Plant life cannot use nitrogen atoms unless they are fixed into pairs.
C. Most plants use single nitrogen atoms, not N2 molecules.
D. Photosynthesis requires excess nitrogen.

answer : c

User David Sdot
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Answer:

C. Most plants use single nitrogen atoms, not N2 molecules.

Step-by-step explanation:

User HopefullyHelpful
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