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kendreae kendreae
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7 years ago
A soil horizon that is 20 to 30 percent or more organic matter is labeled 
A)  A. 
B)  B. 
C)  C. 
D)  O.
Textbook 
Geosystems: An Introduction to Physical Geography

Geosystems: An Introduction to Physical Geography


Edition: 7th
Author:
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One touch of nature makes the whole world kin.  William Shakespeare
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qvcqvc
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7 years ago
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kendreae Author
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7 years ago
This site is awesome
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Smart ... Thanks!
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2 hours ago
Good timing, thanks!
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