Multiple choice

Which of the following instruments is used to measure earthquakes?

  1. Barometer

  2. Seismometer

  3. Hydrometer

  4. Altimeter
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A seismometer is the scientific instrument used to detect and record the intensity, direction, and duration of seismic waves from earthquakes or explosions. Barometers measure air pressure, hydrometers measure liquid density, and altimeters measure altitude.

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