which statement describes a seismograph? it has a flat graphing surface. it is used to locate an earthquakes…

which statement describes a seismograph? it has a flat graphing surface. it is used to locate an earthquakes focus. it uses a needle on graph paper to measure seismic wave activity. it measures data used to find the difference between the arrival times of surface waves.

which statement describes a seismograph? it has a flat graphing surface. it is used to locate an earthquakes focus. it uses a needle on graph paper to measure seismic wave activity. it measures data used to find the difference between the arrival times of surface waves.

Answer

Answer:

It uses a needle on graph paper to measure seismic wave activity.

Brief Explanations:

A seismograph records seismic - wave activity with a moving needle on graph paper. The other options are incorrect as it doesn't just have a flat graphing surface, it doesn't directly locate the earthquake's focus, and it measures more than just the arrival - time difference of surface waves.