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Biology, 03.08.2019 19:50 skylarjohnson2683

The mineral particles found in the layers of a soil, including the topsoil and subsoil layers, were originally weathered from a. the soil's humus. b. the soil's parent material. c. the soil's groundwater.

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The mineral particles found in the layers of a soil, including the topsoil and subsoil layers, were...
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