As a rule, near the Earth's north and south poles,
A. Abundance and diversity are about the same
B. Abundance is high and diversity is low
C. Diversity is high and abundance is low
D. Neither abundance nor diversity is high
E. Abundance is high and diversity is high
Answer: B
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Which of the following is a longitudinal wave?
A. Sound. B. Radio. C. both of these D. none of the above
The best defining feature of an arid region is a place where
A) precipitation is less than the amount of water that could have been evaporated or transpired. B) streams carry little or no water. C) vegetation is sparse. D) here is no influence of the intertropical convergence zone.
Looking at Figure 14.4.2, at current extraction rates, how long are Canada's oil reserves projected to last?
A) 10 B) 89 C) 12 D) 303 E) 138
Which of the following best represents the sequence by which a continent splits apart?
A. continental rifting, then seafloor spreading, then uplift due to mantle upwelling B. seafloor spreading, then continental rifting, then uplift due to mantle upwelling C. uplift due to mantle upwelling, then continental rifting, then seafloor spreading D. None of these choices are correct.