Peralta Community College District
Physical Geography
Rita D. Haberlin, Instructor

Glaciers and Glacial Landforms Quiz

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Important:   When you answer a question, a response box will appear.   You must close this response box before continuing the quiz.  There are 15 questions in this quiz.
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1. The Great Ice Age is believed to have ended approximately:

One million years ago
50,000 years ago
10,000 to 15,000 years ago
Two million years ago
2. How does a glacier change the valley through which it moves?
Deepens it
Widens it
Straightens it
All of the above
3. The farthest advance of an alpine valley glacier is marked by a deposit of:
Medial moraine
Lateral moraine
Recessional moraine
Terminal moraine
4. When the front of a glacier recedes (retreats), it does so by:
Melting faster than the ice moves forward from the zone of accumulation
Flowing in an opposite direction to its original direction
Flowing uphill
Melting more slowly than the ice moves forward
5. The process of glacial ice pulling away large blocks of rock is:
Grooving
Plucking
Abrasion
Surging
6. Continental glaciation once covered north America as far south as:
The Tennessee River
The border between Canada and the United States
The Ohio and Missouri Rivers
The Rio Grande
7. The most important condition needed for the accumulation of glacial ice is:
Higher average global temperatures
Winter snowfall should be greater than summer melting and evaporation
Temperatures in the hills should be higher than on the plains
A steep enough slope to enable ice to accumulate
8. A bowl-shaped hollow near the top of a high mountain range where snow and ice accumulates and erodes is a:
Col
Drumlin
Arete
Cirque
9. The hole left behind by melting blocks of ice in glacial moraine is a:
Drumlin
Esker
Kettle
Cirque
10. Where are you most likely to find fiords?
Alaska and British Columbia
Texas
The Rocky Mountains
The Sierra Nevada of California
The Midwest of the United States
11. How do snake-like eskers form?
From blocks of melting ice
From deposits made by streams flowing in tunnels beneath the ice sheet
From deposits of moraine at the edge of an ice sheet
From direct deposition of moraine beneath a moving ice sheet
12. Which one of the following is NOT evidence of past glaciation?
A steep-sided U-Shaped valley
A hanging valley
Cirques
A meandering river
13. An ice sheet is:
A glacier filling a long, narrow trough
A large glacier that spreads out over part of a continent
A glacier that forms in a bowl-shaped hollow
A glacier that forms in the ocean
14. During the Great Ice Age, what percentage of the land area of the earth was covered by glaciers and ice sheets?
3%
10%
30%
50%
70%
15. Bridalveil Falls in Yosemite National Park falls from a:
Cirque
Fiord
Hanging valley
Arete
Kettle lake

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