A chemically complex,hard to digest spongy organic substance,containing carbon found in soil is:

Question

Quizplus · Accepted Answer

Humus is a chemically complex, spongy substance containing carbon that is found in soil. It is produced by the decay of plant and animal matter. Humus makes up a significant portion of the nutrient-rich topsoil necessary for plant growth. The other options, creosote, silt, clay, and topsoil, do not fit the description of a chemically complex, hard to digest spongy organic substance containing carbon.

A Chemically Complex,hard to Digest Spongy Organic Substance,containing Carbon Found