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Sagot :
Answer:
7:25 pm
Explanation:
The time for P-waves to travel 4000 kilometers is 7 minutes.At 7:32 P.M the P-waves from an earthquake,which is 4000 kilometers away,we're recorded at a seismograph station.This indicates that the time when the earthquake occurred at the epicenter is at 7:25 P.M,which is 7 minutes before the first P-waves were recorded.
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