Answers

2016-03-31T09:42:05+08:00
Maybe they study earthquakes.
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2016-04-01T05:11:54+08:00
Seismologists are the scientists who study earthquakes and planetary activities as well as their effects, such as tsunamis. They use instruments to gather data about shifts in the earth's crust through the use of seismographs and other instruments.
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