What gas had jumped up tenfold when Chris took a gas reading from Mount Pinatubo

Geologist use a seismograph to measure

The period during which a volcano is temporarily inactive

water found underground in the cracks in sand, soil and rock

A channel for moving lava

discussing an idea or trying to make a decision

a dense, destructive mass of very hot ash, lava fragments, and gases ejected explosively from a volcano and typically flowing downslope at great speed.

True or False Volcanoes don’t necessarily move

from deep sleep to violent eruption

in a straight, orderly progression.”

Name of the Air Force base in the Philippines close to Mt. Pinatubo

outcomes or effects of events

After the volcanic eruption on Mt Pinatubo and other natural disaster struck this island what was it.

light glassy lava

Did the pyroclastic flow reach Clark Air Force Base

The eruption of Mount Pinatubo was the ______largest eruption in the twentieth century.

extremely hot or intense.

Which of the following is not a characteristic of a volcano

Which of the following is not a scientific instrument used to measure volcanoes