5) Which of the following is NOT a common reason why soil maps are used?
a) To determine the land drainage capabilities of an area
b) To determine the suitability of soils for particular crops
c) To identify soils and their properties
d) To record how soils are used by people
Letter d, because soil maps usually aren't looked at so that people can see how other people used it; they're looked at so that people can know what to do with it.
