Which of the following activities is most directly related to the dead zones in the Gulf of Mexico just west of the Mississippi River?
A) Extensive shrimp fishing
B) Farming in the Midwest
C) Burning coal to generate electricity in the Midwest
D) Barge traffic on the Mississippi River
B
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Automobile dependency, lack of public open space and civic amenities, environmental degradation, societal costs, lack of diversity— this could all mean only one thing:
A) sprawl. B) redlining. C) ghettos. D) smart growth. E) gentrification.
In which of the following atmospheric layers does most of the Earth's weather occur?
A. troposphere B. thermosphere C. stratosphere D. mesosphere
Alfred Wegener gave the name Pangaea to the supercontinent of landmasses that later broke apart
a. True b. False
Why do most tornadoes in the central U.S. occur during the spring months?
A) Solar energy is a maximum. B) Air-mass contrasts are greatest. C) Surface air is most humid. D) Divergence of air aloft is greatest. E) Upper-air temperatures are warmest.