Select the option that can be used as a one-word substitute for the given group of words.
An instrument for detecting an earthquake
Answer & explanation
Correct answer: option 2
The word that can be used as a one-word substitute for an instrument for detecting an earthquake is seismograph.
- Electrograph is an instrument that records electrical activity.
- Spectrograph is an instrument that separates light into its component wavelengths.
- Magnetograph is an instrument that measures the strength and direction of a magnetic field.