The type of mass movement that moves the greatest amount of material downslope is:
a. creep.
b. slumps.
c. rockfall.
d. slides.
e. avalanches
A
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The Great Rift Valley of East Africa is characterized by ________.
a.) mainly thrust faulting as Africa collides with Arabia b.) mainly transform faulting along zones connecting the rift with the Red Sea c.) mainly anticlinal and synclinal folding as Africa collides with Madagascar d.)mainly normal faulting as East Africa begins to fragmen
Commercial whaling: a. is not allowed around Antarctica
b. is estimated to have reduced the number of large whales from 10 million in 1900 to 5 million today. c. ended entirely in 1987. d. resulted in the extinction of 8 of the 11 large whales once hunted by the whaling industry.
Which of the following is true of eutrophication in marine systems?
A) It does not occur. B) It is rare and occurs only in bad weather. C) It provides needed limiting nutrients. D) It can aid corals by killing parasites. E) It can lead to algal blooms and red tides that kill fish.
After World War II, the expansion of consumerism was closely linked to the growth of
A) state sales tax in the U.S. B) value added tax in Europe. C) credit. D) television. E) all of the above