Duplicate of Volcanoes

Lots of trapped gasses

When ash, cinders, and bombs build up in a steep pile around a volcano's vent, the result is a 

What substance found in magma determines if a volcano will have a quiet or explosive eruption?

Name the plate boundary show at B.

Runny magma

Which is not pyroclastic material

Violent eruption

Rock melts

Name the type of volcano found in C. 

Describe how volcano A forms.

The formation of the Hawaiian Islands is one example of

Describe how volcano C forms.

If geologists detect many small earthquakes in an area near a volcano, what can they infer?

What kind of magma is high in feldspar and silica?

Tall, cone-shaped mountains in which layers of lave alternate with layers of ash are called

How do volcanoes form at B?

Before lava reaches the surface, the molten material is called

An example of a volcanic belts form along a plate boundary is

If a volcano's magma is felsic, the volcano will probably

The main hazard from a quiet eruption is 

Name the type of volcano found in A.

What provides the force that causes magma to erupt to the surface?

The huge hole left by the collapse of a volcanic top after magma is expelled is called a

How do volcanoes form at A?

What is made up of rocky particles about the size of a grain of sand?

Name the type of plate boundary shown at A.

Shield Volcano

Name the type of volcano found in A.

Cinder Cone

Pahoehoe is

Pahoehoe and aa lava