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This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help.
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Summary
Description |
Graphic of a soil profile showing O, A, B, and C horizons. |
Date |
Unknown date |
Source |
http://soils.usda.gov/education/resources/lessons/profile/profile.jpg |
Author |
Unknown |
Permission ( Reusing this file) |
PD-USGov-USDA
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marouane s
Licensing
Public domainPublic domainfalsefalse |
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This image or file is a work of a United States Department of Agriculture 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.
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File usage
The following pages on Schools Wikipedia link to this image (list may be incomplete):
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