The North American Great Lakes ____
a. occupy kettles
b. are tarns
c. are oxbow lakes
d. occupy former river valleys deepened by glacial erosion
d
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The world region that experienced the greatest increase of internally displaced persons (IDPs) in 2012—to almost six million—is
A) North America. B) Latin America. C) Africa. D) the Middle East. E) Asia.
Hurricanes die when they move over land because
A) the Coriolis force is not sufficient to sustain them over land. B) the land temperature is not warm enough to sustain the low pressure system. C) evaporation and subsequent condensation are no longer sufficient to sustain them. D) anticyclonic forces overtake the cyclonic storm.
The parts of Australia that are least subject to drought are
A. Around the coasts B. In the interior C. At Ayres Rock D. In the far west
The phrase “survival of the fittest” has often been used to describe the theory of natural selection
a. True b. False