A vent in the earth's crust from which fiery hot magma erupts from the earth's interior:

1. Plate
2. Tectonics
3. Volcano
4. Vent

Which of the following is NOT a cause of volcanic eruptions?

1. Heat and pressure outside the earth
2. Plate Tectonics
3. Magma chamber
4. Heat and pressure inside the earth

A huge magma chamber which is joined to the earth's surface by a conduit under a volcano:

1. Volcano
2. Vent
3. Dormant volcano
4. Volcanic vent

The lava flows out through an opening in the earth's crust called:

1. Vent
2. Volcano
3. Volcanic vent
4. Plate tectonics