Question

what is soil profile​

Answer 1

A soil horizon is a layer parallel to the soil surface whose physical, chemical and biological characteristics differ from the layers above and beneath. Horizons are defined in many cases by obvious physical features, mainly colour and texture.

Answer 2

Answer:

Most soil profiles have a surface layer of organic material and two or three layers of mineral materials. These are called the horizons of a typical soil profile. The uppermost horizon is called the “organic” horizon or “O” horizon. ... The organic materials in this layer decompose into nutrients that enrich the soils.