Template:Biogeochemical cycle
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| Biogeochemical cycles |
|---|
| Carbon cycle - Hydrogen cycle - Nitrogen cycle |
| Oxygen cycle - Phosphorus cycle - Sulfur cycle - Water cycle |
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- This page was last modified 16:25, 18 May 2008 by Wikipedia user GregorB. Based on work by Wikipedia user(s) Daniel Collins and Poppy.
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