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[edit] Summary
Description |
Soil profile 236x288 38.76 KB
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Source |
http://soils.usda.gov/education/resources/k_12/lessons/profile/profile.jpg
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Date |
unknown
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Author |
USDA employee
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Permission |
This image is a work of a United States Department of Agriculture employee, taken or made during the course of the person's official duties. As a work of the U.S. federal government, the image is in the public domain.
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Other versions |
Soil_profile.jpg |
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