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Type: Multiple-Choice
Category: Botany
Level: Grade 9
Score: 6
Tags: nitrogen fixation
Author: mrsbateacher
Last Modified: 2 months ago

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Botany Question

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Grade 9 Botany

In the nitrogen cycle, how is nitrogen is fixed?
  1. nitrogen-fixing bacteria
  2. lightning
  3. a only
  4. a and b
  5. none of the above
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