تصویر:Profile.jpg

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Profile.jpg (39KB, MIME type: image/jpeg)

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[edit] Summary

Description

Graphic of a soil profile showing O, A, B, and C horizons.

Source

http://soils.usda.gov/education/resources/k_12/lessons/profile/profile.jpg

Date

unknown

Author

unknown

Permission
Public domain 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.

[edit] Licensing

Public domain This work is in the public domain in the United States because it is a work of the United States Federal Government under the terms of Title 17, Chapter 1, Section 105 of the US Code. See Copyright.

Note: This only applies to works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision.


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