Which of the following affects about 83% of the earth's surface, excluding Antarctica?
A. The presence of cities
B. Human activities in general
C. Agricultural use
D. Landfills and waste disposal
E. Occupation by power plants
Answer: B
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On the accompanying map, earthquakes are most likely at locations
A) 1, 2, and 3.
B) 1 and 4.
C) 1 and 5.
D) 2, 3, and 4.
E) 4 and 5.
Which of the following is said to be quantized?
A) the number of eggs in an egg carton B) the amount of water in a glass C) the volume of air in a balloon D) the amount of time in an hour E) none of the above
Hydroelectricity is an important renewable source for commercial power, producing about ________ percent of global commercial energy
A) 6 B) 10 C) 18 D) 27 E) 43
This figure shows plate boundaries south of Alaska. Which location is likely to contain volcanoes above a subduction zone?
A. 1 B. 2 C. 3 D. 4 E. 2 and 3