Which of the following emits more radiation?
A) a coal-fired power plant
B) a nuclear power plant
C) fallout from nuclear tests in the '50s and '60s
D) a television set
E) a computer monitor
A
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Which of the following describes the apparent change in the average global temperatures over the past 100 years or so?
A. They have increased slightly. B. They have fluctuated widely but shown no overall change. C. They have decreased slightly. D. They have remained constant.
Large size is a characteristic that tends to lead to the overexploitation of animals.
a. True
b. False
Hurricanes are also known as:
a. bagyos. b. cyclones. c. typhoons. d. all of these
Which of the following pesticides was used to kill termites and treat wood between 1948 and 1988?
A) Atrazine B) Lindane C) DDT D) PCB E) Chlordane