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Type: Multiple-Choice
Category: Biogeochemical Cycles
Level: Grade 9
Author: swiftadam81
Last Modified: 2 months ago

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Biogeochemical Cycles Question

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Grade 9 Biogeochemical Cycles

What are two ways in which nitrogen fixation happens?
  1. bacteria and water
  2. water and lightning
  3. bacteria and lightning
  4. bacteria and producers
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