Question

what soil is Humus-rich; perhaps most productive soil; supports most US grain production

Answer 1

Answer:

Explanation:

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. This contains more clay and less organic matter. Beneath this is a layer of rocks called bedrock

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Answer 2

Answer:

Yaa,, soil is rich Humus

To hum kya Karen????