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The practice of leaving crop residue on the field between plantings to help prevent soil erosion is known as
Q31: The A horizon is also commonly called
Q55: Spodosols are solely associated with the northern
Q57: Which of the following is INCORRECT regarding
Q66: The entrenchment of a river into its
Q86: The range of environmental conditions in ecotones
Q94: Vertical and horizontal movement caused by the
Q121: The lengthy ridges of till along each
Q122: A class of landforms formed by the
Q140: When coral expel their own nutrient-supplying algae,a
Q276: What two pollutants react with water to