Airplanes are struck by lightning
A) frequently.
B) only during clear-sky flights.
C) only during high altitude flights.
D) only during takeoff and landing.
Answer: A
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A country with a large proportion of its population in a preproductive age group (age 0-14) is most likely to experience a future population growth that
A. declines rapidly. B. declines slowly. C. remains stable (unchanging). D. increases slowly. E. increases rapidly.
Which field was the control group?
A) The west field was the control group. B) The east field was the control group. C) Both fields were controls for one another. D) There were no controls in this experiment.
Which of the following statements is TRUE?
a. Business leaders are the most likely opponents of the environmental movement. b. Whites often show lower levels of concern for the environment than minority groups. c. Both a and b are true. d. Neither a nor b is true.
Which of these numbered features is an accretionary prism?
A. 1 B. 2 C. 3 D. 4 E. 5