题目内容

Based on Figure 3, for a given seismograph, the time elapsed between the arrival of the first p-waves and the arrival of the first s-waves from an earthquake focus 10,500 km away would most likely be:

A. less than 5 min.
B. between 5 min and 7 min.
C. between 8 min and 10 min.
D. more than 10 min.

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