Volcanoes-Part 1

Volcanoes-Part 1

Multiple Choice

The largest volcano in the solar system is called

• St. Helen

• Fuji

• Mons Olympus

• Mount Olympus

Multiple Select

Many volcanos are located at (pick ALL that APPLY)

• divergent boundaries

• convergent boundaries

• Transform boundaries

• Along the Ring of Fire

Multiple Choice

Which stage in a volcanoes life is when it has recently erupted or it has not erupted in a while and is due.

• Extinct

• Dormant

• Active

Multiple Choice

Mantle melts by..

• raising the melting point

• raising the pressure

• lowering the temperature

• adding water

Multiple Choice

What is the first step in a volcanic eruption?

• Mantle Melting

• Long intervals between earthquakes

• little seismic activity

Multiple Select

Volcanos at convergent plate boundaries melt water by (check all that apply)

• raising the temperature of the mantle by adding more rock

• releasing pressure

• introducing water to lower the melting point.

• lowering the temperature in the mantle

Multiple Choice

At divergent plate boundaries, mantle melts because

• the pressure lowers thus allowing more mantle to melt

• The temperature lowers

• raising the temperature of the mantle by adding more rock

Multiple Choice

Hotspots occur when

• magma builds up in the plumes

• they are only at plate boundaries

• magma builds up in the earths core

Multiple Choice

TRUE or FALSE. Felsic lava is the least viscous.

• True

• False

Multiple Choice

Which type of magma has less silica

• mafic

• felsic

• sedimentary

Multiple Choice

What type of lava forms this feature

• A'a

• Pahoehoe

• Pillow

Multiple Select

What type of volcano eruption would not be so bad to be near. (SELECT 2)

• A volcano with felsic magma

• A volcano with mafic magma

• An effusive eruption

• An explosive eruption

Multiple Choice

Which is not an indicator of a potential eruption

• seismography

• gas detection

• sonar

• thermal satellite imaging