The phrase that defines a seismograph is:
an instrument used to measure vibrations.
Which phrase defines a seismograph?(1 point)
Responses
a wave that is generated by an earthquake
a wave that is generated by an earthquake
a fracture within rocks along which earthquakes occur
a fracture within rocks along which earthquakes occur
an instrument used to measure vibrations
an instrument used to measure vibrations
a record of seismic activity from earthquakes
1 answer