OpenStudy (anonymous):

What is the layer above the A horizon? a. B Horizon c. O Horizon b. Alpha Horizon d. Top Horizon

3 years ago
OpenStudy (petiteme):

O horizon

3 years ago
OpenStudy (petiteme):

A Horizon - The layer called topsoil; it is found below the O horizon and above the E horizon.

3 years ago
OpenStudy (anonymous):

Thank you (:

3 years ago
OpenStudy (petiteme):

yw ^_^

3 years ago
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