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Related articles:
Carbon cycle
Phosphorus cycle
Oxygen cycle
Water cycle
Oxygen
Hydrogen sulfide
Ecology
Nitrogen cycle
Key terms: cycle carbon energy held chemicals water sulfur element earth coal study lost period living recycled ciclo include factors reservoirs obtain ecosystems oxygen compounds biosphere abiotic balance sunlight biogeochemical cycles atmosphere constantly hydrosphere lithosphere compartments plants and animals exchange pools Search external links cited by footnotes on Wikipedia page Biogeochemical cycle: |
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