It takes 6 s for a stone to fall to the bottom of a mine shaft. How deep is the shaft?
A) about 60 m
B) about 120 m
C) about 180 m
D) more than 200 m
C
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Even though the concept of globalization has long existed, use of the word globalization did not become commonplace until:
A) the 1990s. B) the 1980s. C) the 1970s. D) the 2000s. E) the word globalization has always been commonplace.
Prior to the Ice Age, the Great Lakes were nonexistent. Indicate whether the statement is true or false
The marine west coast environment
A) is restricted to west coasts of continents. B) typically occurs at the same latitude as Mediterranean climates, or perhaps just to the equator side. C) is too mild for snow. D) has mild summers.
As a result of measures to control acid-deposition in North America, over the last 20 years emissions of sulfur dioxide have been
A) steady, with little decrease in acid-deposition due to rising levels of nitrogen oxides. B) reduced by about 10%, at great cost to the power producing industry. C) reduced to target levels at about the projected cost of compliance. D) reduced beyond target levels and at only a fraction of the industry-projected compliance costs.