Why does the top soil contain much more humus than the sub soil
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Explanation:
Humus is the dead and decaying matter ofplants and animals, and humus is made with the help of decomposers(bacteria, mushrooms, microorganisms,earthworm). So the decomposing activity takes place in topsoil easily. ... That is why a lot of humus is found in topsoil.
∆Upper portion of soil is top soil.
∆2nd portion of soil under top soil is called subsoil which contains some stones and gravels (small).
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