Question

multiple-choice question
what do the jagged lines recorded on seismograph look like?
□ matter
□ waves
rewatch

Explanation:

Seismographs record seismic waves (like P - waves, S - waves) as jagged lines. "Matter" is not related to the visual of seismograph recordings. So the correct option is the one with "waves".

Answer:

The option with "waves" (the second checkbox option: waves)