Many municipal water systems use a high water tower to
A) prevent pollution of the water.
B) paint the town's initials.
C) provide potential energy.
D) get the water out of the ground.
Answer: C
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In terms of the periodic table, is there an abrupt or gradual change between ionic and covalent bonds?
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In the early 19th century, the owners of Hawaii 'an sugar plantations faced which of the major drawbacks?
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"Closed canopy" forests are those in which tree crowns
A. Cover about 20 percent of the ground surface B. Include all sizes of trees C. Cover most of the ground D. Cover less than 10 percent of the ground surface E. Crowd out smaller vegetation