Sophiiiiamm1820 Sophiiiiamm1820

23-10-2017
Geography

contestada

The "a" horizon or combined "o/a" horizons of the soil are known as the ________.

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Kalahira Kalahira

01-11-2017

the layer of soil below the O horizon, composed of a mixture of of humus, sand, silt, and clay; combines the O horizon to form topsoil

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