Which is a vertical cross section of soil extending from the surface to the deepest extent of plant root activity or to the regolith and bedrock?
A)Pedon.
B)Soil profile.
C)Soil horizon.
D)Polypedon.

Question

Quizplus · Accepted Answer

A soil profile is a vertical cross section of soil that extends from the surface to a depth where plant root activity is no longer observed, or to the regolith and bedrock. This includes all the soil horizons present in the profile. A pedon is a unit of soil that is three-dimensional and includes all the soil horizons that occur within it. A polypedon is a group of contiguous pedons that are similar enough in their morphology, genesis, and composition to be considered as a single unit. A soil horizon is a layer of soil that is distinguishable from adjacent layers based on physical, chemical, and biological properties.

Which Is a Vertical Cross Section of Soil Extending from the Surface