Ch 2 Review "Ice and Fire; Washington's Geology"

The Columbia Plateau was created by repeated lava flows from ___ in the earth's crust.

The ring of fire is:

The ___ were once offshore islands.

Huge mud flows called ___ filled rivers after a volcanic explosion in 1980.

__ cause the earth to fold and crack.

15,000 years ago, a great ___ swelled the Columbia River 10 times the flow of all rivers today.

The eruption of ___ was equal to 21,000 atomic bombs.

Washington's mountain ranges were created by:

The Grand Coulee has the following geologic feature(s).

Fossil remains found in the North Cascades resemble those of a similar age found in the

Currently, Washington's most threatening volcano is ____

__, a fossil fuel, is sometimes used to power generators that produce electricity.

Huge boulders that were carried long distance by glaciers are called:

The Great Floods are also known as the:

Mt. Baker, Glacier Peak, Mt. Rainier, Mt. Adams, are ___

The oldest mountains in the West are the:

Rich soil of the Palouse that is a mixture of volcanic ash and dust carried by wind is:

What causes the Atlantic to widen one to three inches a year?

Washington's official fossil is:

Hardened lava forms this type of rock: