What is on the x-axis of a seismogram?

Question

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The x-axis of a seismogram represents time, typically in minutes or seconds. It shows how the ground motion recorded by the seismograph changes over time. The other options are not represented on the x-axis of a seismogram. The Richter scale and the Modified Mercalli scale are used to measure the magnitude and intensity of earthquakes, respectively. A maximum magnitude of 2 is a specific value on the Richter scale, but it is not the same as the x-axis. The epicenter is the point on the Earth's surface directly above the focus of an earthquake and is not represented on the x-axis of a seismogram.

What Is on the X-Axis of a Seismogram