Which of the following is a good soil conservation method to reduce the loss of topsoil on gentle slopes that are farmed?
A) Planting crops parallel to the contours of the slope.
B) Leaving crop residues (i.e., stalks) in place in the field.
C) Planting grass in natural drainageways on the slope.
D) All of these choices are good for soil conservation.
Question 2
Chemical weathering will break down a rock by changing the molecular compounds that make up the rock.
Indicate whether this statement is true or false.
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