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Nitrogen in the atmosphere must be "fixed" before it can be used by plants. Atmospheric nitrogen is "fixed" by A) plants. B) bacteria. C) bacteria and insects. D) bacteria and lightning.
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Nitrogen in the atmosphere must be "fixed" before it can be used by plants. Atmospheric nitrogen is "fixed" by A) plants. B) bacteria. C) bacteria and insects. D) bacteria and lightning.

User Gonzix
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Answer:

B.) bacteria

Step-by-step explanation:

User Dasdasd
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C. Bacteria and insects

User IcarusNM
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