SELECT ALL OF THE ANSWERS THAT APPLY (<--- Please take notice to this part of my question)
Instruments used to monitor a volcano include _____.
- seismographs
- Richter scale
- tiltmeters
- correlation spectrometers
- Mercalli intensity scale

Seismographs evaluate the movement in the crust of the earth. Volcanic eruptions are strongly linked to earthquake activities which also cause earthquakes & tremors, and seismographs are used for tracking volcanoes as well. Scientists used various instruments for measuring ground deformity (EDM, leveling, GPS and tilt), volcanic gas detection and measurement instruments (COSPEC)

A tiltmeter is a delicate instrument used to evaluate minute changes from lateral level on ground.

Volcanologist discovered an process to measure pollution which is termed as correlation spectrometers

SELECT ALL OF THE ANSWERS THAT APPLY (<--- Please take notice to this part of my question)Instruments used to monitor a volcano include _____. - seismographs - Richter scale - tiltmeters - correlation spectrometers - Mercalli intensity scale

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SELECT ALL OF THE ANSWERS THAT APPLY (<--- Please take notice to this part of my question)
Instruments used to monitor a volcano include _____.
- seismographs
- Richter scale
- tiltmeters
- correlation spectrometers
- Mercalli intensity scale