1. Evolution of the Earth

2. In the Pacific Northwest, two plates are converging causing which of the following features or process?
Volcanoes such as the Cascades
Mountains such as the Olympics
Subduction Earthquakes
All of the above
Response Grid

3. What of the following processes did not significantly contribute to the formation of the Columbia Gorge?
Erosion from the Columbia River
A past tsunami
Floods from Glacial Lake Missoula
Glaciers from the last ice age
Response Grid

4. Put the following events into order from oldest to most recent.
Creation of the Pacific Ocean, the uplifting of the Cascade Range, the ending of the last ice age, last eruption of Mount St. Helens.
The uplifting of Cascade Range, the ending of the last ice age, creation of the Pacific Ocean, last eruption of Mount St. Helens.
The ending of the last ice age, creation of the Pacific Ocean, the uplifting of the Cascade Range, last eruption of Mount St. Helens.
The uplifting of the Cascade Range, Creation of the Pacific Ocean, last eruption of Mount St. Helens, the ending of the last ice age.
Response Grid

5. In the Pacific Northwest, natural disasters (such as earthquakes, tsunamis and volcanic eruptions) are likely to be caused by which geologic process?
El Niño event
Convergence of two continental plates
Divergence of two tectonic plates
Subduction of an oceanic plate under a continental plate
Response Grid

6. The subduction of the Juan de Fuca plate under the North American plate created which feature in the Pacific Northwest.
The Channeled Scablands
The Puget Sound
The Palouse Hills
The Cascade Mountains
Response Grid

7. Put the following events on the diagram in correct geologic order from oldest to most recent.B A D

8. C B A D .
Layer A was laid down, Layer B was laid down, Layer C was laid down, Fault D occurred
Fault D occurred, Layer C was laid down, Layer B was laid down, Layer A was laid down
Layer C was laid down, Layer B was laid down, Layer A was laid down, Fault D occurred
Fault D occurred, Layer A was laid down, Layer B was laid down, Layer C was laid down
Response Grid

9. To determine the actual age of a layer what method would not be useful for a scientist?
Using radioactive isotopes in the layer
Measuring the thickness of the layers
Finding a fossil of an organism that lived during a certain era
Evidence of a documented event (volcanic ash, glacial deposits, flood deposits) in a layer
Response Grid

10. Which of the following do paleoclimantologists not use to gather data of past climates?
Tree rings from cut down trees
Ice cores pulled from the poles
Fossil pollen taken from pond sediment
The number of volcanic eruptions in the past
Response Grid