<P> Soil is a mixture of organic matter, minerals, gases, liquids, and organisms that together support life . The Earth's body of soil is the pedosphere, which has four important functions: it is a medium for plant growth; it is a means of water storage, supply and purification; it is a modifier of Earth's atmosphere; it is a habitat for organisms; all of which, in turn, modify the soil . </P> <P> Soil interfaces with the lithosphere, the hydrosphere, the atmosphere, and the biosphere . The term pedolith, used commonly to refer to the soil, literally translates ground stone . Soil consists of a solid phase of minerals and organic matter (the soil matrix), as well as a porous phase that holds gases (the soil atmosphere) and water (the soil solution). Accordingly, soils are often treated as a three - state system of solids, liquids, and gases . </P> <P> Soil is a product of the influence of climate, relief (elevation, orientation, and slope of terrain), organisms, and its parent materials (original minerals) interacting over time . It continually undergoes development by way of numerous physical, chemical and biological processes, which include weathering with associated erosion . Given its complexity and strong internal connectedness, it is considered an ecosystem by soil ecologists . </P>

Where do the minerals (inorganic materials) that form soil come from
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