Soil, soild, water, gas, surface, porous
Along with air and water, soil contributes essential processes to the natural order of global cycles. With the exception of edibles from the sea, virtually everything we, and most other land-based animals, eat is derived from soil. Soil is a storage medium of essential minerals and nutrients for fulfilling our agricultural and nutritional needs. Humans work the soil to provide the basics of food, clothing, and shelter. We also use the soil as a medium to store and discard our waste. Virtually everything we do is in some way connected to soil
McKimmey, J. M.; Dixon, B.; Scott, H. D.; and Scarlat, C. M., "Soils of
Arkansas" (2002). Research Reports and Research Bulletins. 27.