Which of the following does moment magnitude measure or estimate?
A) the amplitude of the largest seismic wave recorded on a seismogram
B) the total energy released during an earthquake
C) the total damage to an area
D) difference in magnitude between P and S waves
Answer: B
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Which rock type may be both a chemical and a biochemical sedimentary rock?
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A. earthquake waves. B. sound. C. light. D. all of the above
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