A country with a large amount of arable land and a small number of farmers will have a
A) high physiological density.
B) low physiological density.
C) high agricultural density.
D) low agricultural density.
E) low arithmetic density.
Answer: D
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Human population growth affects water pollution because
A) more people produce more industrial waste that is discharged into streams and the ocean. B) people consume too much freshwater. C) people take water out of the water cycle. D) all of the above
In a material that holds groundwater, porosity
A. determines the composition of the cement between grains and clasts. B. controls the amount of water that can be stored. C. does not depend on the size and shape of grains and clasts. D. is constant from one type of material to another.
How big is the range of soil degradation observed between continents?
a. about 7% b. about 15% c. about 22% d. about 50%
Which of the following locations would form a metamorphic rock?
A) Locations 1 and 2
B) Locations 2 and 3
C) Locations 3 and 4
D) Locations 1, 2, and 3
E) Locations 5 and 6