Which statement describes a seismograph? It has a flat graphing surface. It is used to locate an earthquake’s 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.

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

Explanation:

The seismograph is also called as the seismometer. It measures the notion of ground caused by earthquake. hope this helps you :)

answer; /// the above statement is ( false);

answer; the correct answer to the above statement is (biosphere); ///