Scsc 301 Exam 2 Questions And Answers

The subsoil horizon symbol for the zone of maximum eluviation is: correct answer: E The percent organic matter in soils increases as_____ decreases correct answer: Temperature The horizon that movement and accumulation of sodium is a microprocess essential to the occurrence of is: correct answer: Bn The epipedons that are thick with a dark color, low base status, and good structure are called: correct answer: Umbric In the soil forming macroprocess, the formation of clay minerals is an example of: correct answer: Transformation The Soil Great Group for the soil classified as Hardeman fine sandy loam, coarse-loamy, mixed, thermic, Typic Ustochrept is: correct answer: Typic Ustochrept A subsoil horizon containing an accumulation of clay is designated as correct answer: Agrillic A soil containing an ochric epipedon, an albic horizon, and an argillic horizon with high base status in the argillic horizon is classified as a (an) correct answer: Alfisol The Soil Order of the soil clasiffied as reap clay, fine, smectitic, thermic, Entic Chromustert is: correct answer: Vertisol The soil order formed under grass vegetation in a semi-arid to sub humid climate is classified as a (an) correct answer: Mollisol Organic Soils are correct answer: Histosols Modern soil survey reports do not contain: correct answer: estimated dollar values of land fro agriculture. The soil order formed in environments where the erosion or deposition exceeds soil formation is a (an) correct answer: Entisol The probability that the soil found at a specific location on the landscape is included with the defined limits of the soil mapping unit is about correct answer: 75% Select the soil mapping unit that would have the least amount of variability (highest uniformity). correct answer: Satsuma silt loam soil, 5-8% slope Land in land use capability subclass IIe is: correct answer: Slightly erodible Examples of land use capability units are a)IVs, b) IIw, and c) IIIe. Arrange the units from lowest to highest degree of limitations for use correct answer: b, c, a Three days after a 2 inch rain, the movement of water through