If there’s a volcanic eruption, is there always an earthquake?

Sometimes, yes. A few large regional earthquakes (greater than magnitude 6) are considered to be related to a subsequent eruption or to some type of unrest at a nearby volcano. However, volcanoes can only be triggered into eruption by nearby tectonic earthquakes if they are already poised to erupt

answer; i believe that the correct answer is(d) nondisjunction during meiosis;

human-caused climate hope this