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carbon cycle.md

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see also : [[plants and photosynthesis]]

  1. Photosynthesising plants remove CO2 from the atmosphere.
  2. Eating passes carbon compounds along a food chain.
  3. Respiration in plants and animals returns CO2 to the atmosphere.
  4. Organisms die and decompose. Decomposers (bacteria and fungi) break down dead. material and release CO2 via respiration.
  5. Combustion of materials (e.g. wood, fossil fuels) releases CO2