Answer:
During an earthquake, geologists use a machine called a SEISMOGRAPH to study seismic waves.
P waves can pass through both solid and molten rock, but S waves can pass only through SOLID rock.
Explanation:
Earthquakes help geologists understand Earth’s interior as during an earthquake, geologists use a machine called a seismograph to study seismic waves.
P waves can pass through both solid and molten rock, but S waves can pass only through solid rock.
Seismograph simply means an instrument that's used to record the motion of the ground when there's an earthquake.
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