DEF- a natural body comprised of soils, liquid, and gasses that occurs on the land surface, occupies space, and is characterized by one or both of the following: horizons that are distinguishable from the initial material as a result of additions, losses, transfers, and transformations of energy and matter or the ability to support rooted plants in a natural environment!
- goes from just being those components by themselves, to a 'living organism' that can support plant life
- The unconsolidated mineral or organic material on the immediate surface of the earth that serves as a natural medium for the growth of land plants.
DEF- The unconsolidated mineral or organic matter on the surface of the earth that has been subjected to and shows effects of genetic and environmental factors of: climate (including water and temperature effects), and macro- and microorganisms, conditioned by relief, acting on parent material over a period of time
(Soil Science Society of America)