Multiple choice

Which instrument is used to measure earthquake?

  1. Richter scale

  2. Polygraph

  3. Seismograph

  4. None of these

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A seismograph is an instrument used to detect and record seismic waves caused by earthquakes. The Richter scale is a scale used to measure the magnitude, not the instrument itself.