Question

Which best describes the difference between a seismograph and seismogram?

A.
A seismograph is the instrument that detects and records movements within the earth, while a seismogram is the recording.

B.
A seismograph records tectonic activity, while a seismogram records volcanic activity.

C.
A seismograph is a written record of volcanic eruptions, while a seismogram is a written record of earthquakes.

D.
A seismograph is the instrument that detects and records volcanic activity, while a seismogram is the written record of that activity.