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Due to system maintenance, CK-12 will be unavailable on 8/19/2016 from 6:00p.m to 10:00p.m. PT.

Carbon Cycle

Carbon is the building block of life and constantly changes form as it is recycled by living and nonliving systems.

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Recycling Matter Study Guide
Student Contributed
This study guide looks at three important biogeochemical cycles: water cycle, carbon cycle, and nitrogen cycle.
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