Soil Scientists Generally Map the Soils in a Landscape by Sampling

Multiple Choice

Soil scientists generally map the soils in a landscape by sampling the soil in ______.

A) pre-determined a grid-like geometric pattern of evenly spaced points
B) a computer-calculated pattern of random points
C) auger holes made mostly near expected soil boundaries
D) four soil pits, one dug in each corner of the area to be mapped
E) A and D