Question

What is a rich soil made up of sand and mud that is deposited by running water known as

Answer 1

Answer: alluvial soil

Explanation:  Alluvium is loose, unconsolidated soil or sediment that has been eroded, reshaped by water in some form, and redeposited in a non-marine setting. Alluvium is typically made up of a variety of materials, including fine particles of silt and clay and larger particles of sand and gravel.

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