The "year without a summer," 1816, was caused by
A) El Niño.
B) La Niña.
C) a volcanic eruption.
D) changes in the output of the Sun.
E) none of the above
C
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Record-breaking low temperatures are associated with which of the following types of air masses?
A. cP B. mP C. cT D. mT
The term troposphere literally means:
A) "warm air." B) "region of weather." C) "layer of life." D) region where air "turns over."
Effects of tariffs and quotas include all of the following EXCEPT
A) comparative advantage of supplying nations is not diminished. B) the development and expansion of inefficient industries. C) less international trade. D) higher costs for consumers. E) supplying countries have a smaller market in the to which they export.
Solar radiation reaches Earth's surface as
a. ?visible radiation only. b. ?ultraviolet radiation only. c. infrared radiation only. d. ?visible and infrared radiation only. e. ?ultraviolet, visible, and infrared radiation.