What causes people in the US to move to cities and increase the urban population?
A. jobs
B. drought
C. famine
D. war
Answer: A
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Since the 1960s in the United States, public policies and high taxes on cigarettes to discourage smoking have
A) increased, and the number of adult smokers has been cut in half. B) increased, but the number of adult smokers has stayed about the same. C) increased, but the number of adult smokers has increased by about 50%. D) decreased, and the number of adult smokers has dropped by about 20%.
Which piece of glassware do we use to deliver a variable but precisely known volume of solution during a titration?
A) a buret B) an Erlenmeyer flask C) a graduated cylinder D) a volumetric pipet
The number of fatalities from the Mt. Pinatubo eruption was relatively low because
A) the eruption was relatively small B) few people lived in the vicinity of the volcano C) the eruption was predicted successfully, and the area was evacuated D) the eruption, though large, was characterized by extensive lava flows
A ________ is an instrument used to measure humidity
A) hygrometer. B) aquimeter. C) hydrometer. D) humidimeter.