Soils are encountered around the landscape as groups of comparable pedons, known as polypedons, that comprise adequate area to qualify as a taxonomic unit. Polypedons are bounded from underneath by “not soil” and laterally by pedons of dissimilar qualities. Test The Soil pH: Soils may have a range of acidity, https://font05937.ageeksblog.com/28694074/helping-the-others-realize-the-advantages-of-soil-association