Carbon_cycle.jpg
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| Description | Carbon Cycle |
| Date | |
| Source | http://earthobservatory.nasa.gov/Features/CarbonCycle/ |
| Author | Diagram adapted from U.S. DOE, Biological and Environmental Research Information System. |
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Permission
( Reusing this file ) |
US Government work |
| Other versions | Arabic |
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This image is a work of a
United States Department of Energy
(or predecessor organization) employee, taken or made as part of that person's official duties. As a
work
of the
U.S. federal government
, the image is in the
public domain
.
Please note that national laboratories operate under varying licences and some are not free . Check the site policies of any national lab before crediting it with this tag.
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