The Poportion of humans
is negligible in course soil
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Humus, nonliving, finely divided organic matter in soil, derived from microbial decomposition of plant and animal substances. Humus, which ranges in colour from brown to black, consists of about 60 percent carbon, 6 percent nitrogen, and smaller amounts of phosphorus and sulfur. As humus decomposes, its components are changed into forms usable by plants.
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Answer:In soil science, humus denominates the fraction of soil organic matter that is amorphous and ... Humus is different from decomposing soil organic matter. The latter looks rough and has visible remains of the original plant or animal matter.
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