Question

The layer of soil is rich in humus


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Answer 1

Answer:

topsoil

The uppermost layer is called topsoil and this layer contains humus, plant roots, and living creatures. The more humus found in topsoil, the more nutrient rich the topsoil and the better the conditions for growing plants. The middle layer is called subsoil.

Answer 2

Answer:

topsoil is rich in himis