Which travels faster in a vacuum?
A. Light waves.
B. Radio waves.
C. both the same
D. none of the above
Answer: C
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The index of refraction
A) is independent of the speed of light. B) is higher for water than it is for air. C) does not affect the angle of refraction. D) depends upon the angle of incidence. E) all of the above
Which of the following is NOT a characteristic of the geography of legal services in the U.S.?
A) high degree of spatial agglomeration B) high degree of functional agglomeration C) close interaction with clients D) close interaction with suppliers E) prevalence of suburban locations
Use your knowledge of plate boundaries to answer whether a volcano is likely or unlikely to form at the location of the red triangle.
A) Likely
B) Unlikely
Which of the following describes the likely formation of occluded fronts?
A. A cold front overtakes a warm front. B. A warm front overtakes a cold front. C. Overrunning occurs along a warm front. D. A cold front overtakes a squall line.