Multiple choice general knowledge science & technology

The intensity of a earth quake is measured by

  1. Barometer

  2. Hydrometer

  3. Polygraph

  4. Seismograph

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

A seismograph is the instrument used to detect and record the intensity of earthquakes. It measures the vibrations of the ground caused by seismic waves and produces a seismogram. Barometer measures atmospheric pressure, hydrometer measures liquid density, and polygraph is a lie detector.