An area of near uniformity in one or more characteristics is called what?
A) A functional region
B) A formal region
C) A perceptual region
D) A core region
B
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Which three demographic measures most closely parallel each other in terms of global distribution?
A) life expectancy, crude birth rate, crude death rate B) crude death rate, crude birth rate, total fertility rate C) natural increase rate, crude birth rate, total fertility rate D) natural increase rate, crude birth rate, crude death rate E) life expectancy, crude death rate, total fertility rate
Which of the following is true of all titrations?
A) They are acid base reactions. B) The chemicals react in a 1:1 ratio. C) The reaction must occur rapidly and completely. D) all of the above
Which of the following factors indicates a high risk for volcanic mudflows or lahars?
A) A shield volcano that forms a low mountain in the tropics B) A volcano whose hillslopes are covered with hard basaltic lava C) A volcano with a thick covering of snow or ice D) All of these are correct.
How do trees counteract global warming?
A) They are carbon sinks, taking carbon dioxide out of the air. B) They shade Earth's surface. C) They produce oxygen. D) They transpire water vapor into the air.