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Type: Multiple-Choice
Category: Biogeochemical Cycles
Level: Grade 9
Author: atc763
Last Modified: 5 months ago

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Biogeochemical Cycles Question

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Grade 9 Biogeochemical Cycles

The two main processes of the oxygen-carbon cycle are
  1. photosynthesis and carbonation.
  2. transpiration and photosynthesis.
  3. cellular respiration and transpiration.
  4. cellular respiration and photosynthesis.
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