BJU Chapter 8

The Circum-Pacific volcano belt is sometimes called the Ring of Fire.

A(n) _________ is a depositional mountain built up by molten rock that has risen

The viscosity of lava depends mainly on its

Volcanoes are made of ________rocks.

A layer of loose pyroclastic materials and ash covering the ground is called

A mudslide caused by a volcano is called a

Pillow lava forms

The depression found at the top of most volcanic cones is called a

The term tephra is used to describe lava that has cooled and solidified on the ground.

Geyser water is heated by magma.

Looking at a volcano from a distance, its most recognizable feature is its

The internal energy of the earth, evident where geysers exist________energy

A rapid downhill movement of hot, solid, volcanic particles suspended in steam is a

The eruption of Mt. Tambora affected North America and Europe's weather.

The term volcano originally came from the name for_______________

Which of the following does not belong with the other three?

Nothing lives near the "black smoker" vents along the deep-sea mid-ocean ridges.

Where are most volcanoes located in Pacific oceanic plate?

A volcano is made of igneous rock.

Most active volcanoes in the world exist

Which of these lists is in correct order from smallest to largest?

A volcano begins to form when magma forces its way to the surface and breaks through, forming

Some volcanoes that were considered dormant have erupted with disastrous results

Lava with the highest silica content will usually