Which has the greatest speed in a vacuum?
A. Light.
B. X-rays.
C. Radio waves.
D. all the same
Answer: D
Environmental & Atmospheric Sciences
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A central place is a
A) hinterland. B) market center. C) range of a good. D) rank-size distribution. E) hexagonal settlement.
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Which plate boundary along the Circum-Pacific Belt is responsible for the majority of that belt's earthquakes?
A) Convergent B) Divergent C) Transform
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Which method of glacial erosion is responsible for the marks in this image?
A) Abrasion B) Plucking C) Quarrying D) Jointing
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