Volcanic Eruptions

Question 1

During a quiet eruption, a lava flow may set fire to and then bury everything in its path.

Revolt · Accepted Answer

T

Question 2

A dormant volcano is erupting or may erupt in the near future.

Revolt · Accepted Answer

F

Question 3

An extinct volcano is unlikely to erupt again.

Revolt · Accepted Answer

T

Question 4

A volcano that may erupt again at some time in the distant future is

Revolt · Accepted Answer

dormant.

Question 5

A _____________ forms as a result of lava that has cooled at the top of a volcano.

Revolt · Accepted Answer

caldera

Question 6

The main hazard from a quiet volcanic eruption is

Revolt · Accepted Answer

lava flows.

Question 7

Dissolved minerals trapped in magma under tremendous pressure provide the force for a volcanic eruption.

Revolt · Accepted Answer

F

Question 8

The crater is the bowl-shaped area around a volcano’s central vent.

Revolt · Accepted Answer

T

Question 9

What triggers the small earthquakes that occur around a volcano before an eruption?

Revolt · Accepted Answer

upward movement of magma

Question 10

Which of the following volcano hazards is made up of rocky particles about the size of a grain of sand?

Revolt · Accepted Answer

volcanic ash

Volcanic Eruptions Answers