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soil
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Chernozem soil profile soil map of the world Podzol soil profile soil profile soil textures Inceptisol soil profiles on hillslopes Ferralsol soil profile Mollisol soil profile carbon cycle
For Students
Leptosol soil profile
soil summary
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soil: Related Content

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Photos and Videos

Chernozem soil profile
soil map of the world
Podzol soil profile
soil profile
soil textures
Inceptisol
soil profiles on hillslopes
Ferralsol soil profile
Mollisol soil profile
carbon cycle
Learn how weathering of rock and the activities of organisms help in soil formation
How do plants absorb water and nutrients?
See All Videos and Images →

Related Topics and References

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Key People

Curtis Fletcher Marbut
American geologist
Ruffin, Edmund
Edmund Ruffin
American scientist
Selman Abraham Waksman, 1968.
Selman Abraham Waksman
American biochemist