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Answer:

Subsoil is the layer of soil below the topsoil. ... The layer of soil closest to our feet is topsoil. Geologists refer to it as the “A” horizon, whereas subsoil is the “B” horizon. Topsoil is much more fertile than subsoil because it contains more organic matter, thus giving it a darker color.

009346

Answer:

subsoil is the layer underneath the surface topsoil, which consists of greater minerals and materials of iron and aluminium compounds than topsoil. The subsoil tends to be more compact than topsoil, since it does not hold any air in the soil.

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