Unpolluted freshwater supplies
A. typically require treatment before being delivered to homes.
B. are available to most of the people of the world.
C. are primarily provided by groundwater.
D. are becoming more common as sources of pollution are eliminated.
Answer: A
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"Secret cities" were the sites of all of the following except
A. agricultural collective farms B. nuclear industry C. biologic warfare research D. missile and weapon design
What is the ability of one or more organisms in a population to tolerate a chemical designed to kill it, such as when bacteria tolerate antibiotics?
A. genetic adaptation B. genetic strength C. genetic mutation D. genetic resistance E. genetic tolerance
One concern of the cost-benefit analysis is that it places an economic value on everything.
Answer the following statement true (T) or false (F)
During the June solstice, the circle of illumination completely shades out
A. points south of the Arctic Circle but completely illuminates points north of the Antarctic Circle. B. points south of the Antarctic Circle but completely illuminates points north of the Arctic Circle. C. points north of the Arctic Circle but completely illuminates points south of the Antarctic Circle. D. points north of the Antarctic Circle but completely illuminates points south of the Arctic Circle.