Analysis of Southern Oscillation Index (SOI) trends indicates
A) La Nina episodes are becoming more common.
B) El Nino episodes are becoming more common.
C) the frequency of La Nina and El Nino is equal.
D) none of the above.
Answer: B
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Captive breeding programs in zoos
A. eliminate the need to preserve critical habitats. B. require the captive population to number between 100 and 500. C. increase the genetic variability of species. D. are relatively inexpensive to operate. E. are used for all zoo species.
Curitiba, Brazil is famous for its
A. Zero population growth program B. Revitalized city nightlife C. Complete environmental breakdown due to uncontrolled industry D. Particularly disastrous rainforest destruction E. Successful mass transit program
Which of the following landform definitions is CORRECT?
a. The taiga is a treeless area between the treeline and Arctic regions. b. The tundra is an area of coniferous forests. c. Permafrost areas suffer from continue drought. d. Steppes are semi-arid grasslands.
The recent rise of the Chinese economy is associated with
A) the adoption of rigid centralized planning. B) the elimination of economic systems. C) the adoption of economic policies widespread in the former Soviet Union. D) a switch to free-market policies.