True or False: Volcanoes only exist on Earth.

• True

• False

Answer explanation

Volcanoes not only exist on the Earth, but are found on the Moon, Mars, Venus, and Mercury.

The largest volcano in the solar system, Olympus Mons, is found on what planet?

• Earth

• Mars

• Venus

• The Moon

One moon of____is the most volcanically active body in our solar system.

Magma forms in areas where_____slips into the Earths' mantle.

Magma remains under the Earth's surface thanks to which 3 geological factors?

• Lithostatic Pressure

• Oceanic Water

• Magmastatic Pressure

• Rock Strength

One of the most common causes of an eruption is an increase in

• Rock strength

• Magmastatic pressure

• Weight of the Earth's crust

• Lithostatic pressure

Another cause of eruptions is from a process known as___

Unloading happens when the weight of the rock above becomes___

____turns hard stone into soft clay

True or False: Knowing what causes eruptions makes them easy to predict

• True

• False