Why is soil not considered a biotic factor?

The vast diversity of life in soil reflects the vast diversity of microhabitats, with conditions for life radically changing in the space of a millimeter. You’re no more justified in lumping soil into a single biotic factor than lumping the rest of the biosphere into one. read more

It sometimes contains biotic matter. Examples of biotic materials are wood, linoleum, straw, humus, manure, bark, crude oil, cotton, spider silk, chitin, fibrin, and bone. read more

After air and water SOIL, is the third Abiotic Factor--contributes to the physical environment. Please View the video in the Related Links that consists of the answer and gives you a mayor understanding of why it is an abiotic factor. read more