What kind of eruption is characterized by lava outpourings on the ground

True or False

Explosive eruption happens either because there is not enough gas (volatiles) in the magma to break it apart upon escaping, or the magma is too viscous (sticky) to allow the volatiles

to escape quickly.

True or False

Molten rock is called “lava” when it is

underneath the ground. It is called “magma” once it has

erupted onto the surface.

True or False

Explosive eruption can cause alterations in the climate of the affected area.

True or False

The volume of gas and the viscosity does not affect the type of eruption.

True or False

Small amounts of gas and (or) low viscosity (runny) magma will form an effusive eruption

True or False

Mt. Mayon is a stratovolcano.

True or False

A medical mask works the best during a volcanic ash fall.

Cinder cones are the most common type of volcanoes along the Pacific RIng of Fire

Which type of volcano is broad and gently sloping?

Mt. Smith is what kind of volcano?

True or False

Most of the volcanoes in the Philippines are active.