a scientist who studies volcanoes and collects data to understand how volcanoes work and uses data to…

a scientist who studies volcanoes and collects data to understand how volcanoes work and uses data to predict when they may erupt is called a seismologist meteorologist volcanologist seismograph

a scientist who studies volcanoes and collects data to understand how volcanoes work and uses data to predict when they may erupt is called a seismologist meteorologist volcanologist seismograph

Answer

Brief Explanations:

A seismologist studies earthquakes, a meteorologist studies weather, a seismograph is an instrument. A volcanologist studies volcano - related phenomena including eruptions and uses data for predictions.

Answer:

volcanologist