SCSC 301 Questions and Answers Already Passed

SCSC 301 Questions and Answers Already Passed Which horizon is not part of the soil solum? C Organic matter in soil typically accounts for ____% or less of the soils total volume. 5% Pore space in soil may contain either _____ or _____ Air Water Soils are the result of ______ and biota acting on parent material over time as modified by ______ Climate Topography Though plants depend on soil for growth, which of the items below is found in soil, but not required for plant growth? Carbon dioxide Soil profile Contains 5 master horizons potentially founding a soil A-E-B-C Which soil forming factor can be transported before it affects soil formation? Parent material Which of the following describes a composite sample? 10 samples of soil were collected across a field, mixed together, then used as the final single soil sample representing the field submitted for analysis Which horizon is most affected by the soil forming factors? A Which of the following are soil forming factors? Time Parent material Topography Biota Climate Compare a humid tropical rainforest to a cool and dry mountain plain and elect the most correct answer. The humid tropical rainforest will weather faster and the soil will develop more rapidly due to intense weathering climate Soil that forms in place is called _____? Residual Soils that have parent materials affected by the movement of water include _____ soils, which are formed from deposition of sediments from streams and rivers into deltas and floodplains, and _____ soils, which are formed from deposition of sediment by lakes. Alluvial Lacustrine A mineral, such as quartz, that has not been altered since its formation from magma is a _____ mineral. Primary Which of the following are primary minerals? Mica Quartz Olivine Hornblende Feldspar As a primary mineral weather to form secondary minerals, elements can sometimes be lost. Which of the following are most likely to be lost to leaching? Calcium (Ca) Potassium (K) Sodium (Na) Soil organic matter forms from the decomposition of _