Chapter 15 Test: Glaciers And Erosion Answers
Chapter 15 Test: Glaciers and Erosion
Matching:
1. ________ pyramid-like peak made of arêtes A. snowfield
2. ________the unsorted material left beneath B. snowline the glacier when the ice melts
3. ________depressions where most outwash plains are pitted C. cirque
4. ________theory that most scientists now accept D. kettles
5. ________large cracks E. horn
6. ________masses of ice that occupy millions of square kilometers F. Milanokovitch Theory
7. ________an almost motionless mass of permanent snow and ice G.ground moraine
8. ________elevation above which ice and snow remain throughout H. crevasses the year
9. ________grainy ice I. continental ice sheets
10. ________bowl-shaped depression J. firn …show more content…
True and False:
11.
The Great Lakes of North America are the result of a combination of erosion and deposition by continental ice sheets. ¬¬¬¬¬_______
12. When continental ice sheets recede, long ridges of gravel and course sand are absorbed on the way. ________
13. Snow accumulates year after year in polar regions and in the United States. _______
14. A snowline is an almost motionless mass of permanent snow and ice. ________
15. Glacial erosion may produce a bowl-shaped depression know as an esker. ________
16. A kettle is a mound. ______
17. A long period of climatic cooling during which continental sheets cover large areas of the earth’s surface is known as an ice age. ________
18. The composition of the water in a salt lake depends on the solved materials it contains.
________
19. Glaciers covered nearly two-thirds of the earth’s land surface during the last glacial period. _______
20. Ice ages probably begin with a long-term increase in the earth’s average temperatures. _______
Fill-in The Blank:
21. The two main types of glaciers are valley glaciers and ________ ice sheets.
22. During an ____ age, glacial advances alternate with glacial retreats.
23. The ____________ Theory is the most commonly accepted theory of the cause of ice ages.
24. Glaciers move by _______ slip and internal plastic flow.
25. When glaciers ______, they deposit their _______, creating features that can be readily indentified.
Short Answers:
26. What main type of glacier covers Greenland?
27. How is a cirque produced?
28. What happens to the sea level during an ice age?
29. What did Milutin Milankovitch propose?
30. Describe how glaciers form.
Matching:
1. ________ pyramid-like peak made of arêtes A. snowfield
2. ________the unsorted material left beneath B. snowline the glacier when the ice melts
3. ________depressions where most outwash plains are pitted C. cirque
4. ________theory that most scientists now accept D. kettles
5. ________large cracks E. horn
6. ________masses of ice that occupy millions of square kilometers F. Milanokovitch Theory
7. ________an almost motionless mass of permanent snow and ice G.ground moraine
8. ________elevation above which ice and snow remain throughout H. crevasses the year
9. ________grainy ice I. continental ice sheets
10. ________bowl-shaped depression J. firn …show more content…
True and False:
11.
The Great Lakes of North America are the result of a combination of erosion and deposition by continental ice sheets. ¬¬¬¬¬_______
12. When continental ice sheets recede, long ridges of gravel and course sand are absorbed on the way. ________
13. Snow accumulates year after year in polar regions and in the United States. _______
14. A snowline is an almost motionless mass of permanent snow and ice. ________
15. Glacial erosion may produce a bowl-shaped depression know as an esker. ________
16. A kettle is a mound. ______
17. A long period of climatic cooling during which continental sheets cover large areas of the earth’s surface is known as an ice age. ________
18. The composition of the water in a salt lake depends on the solved materials it contains.
________
19. Glaciers covered nearly two-thirds of the earth’s land surface during the last glacial period. _______
20. Ice ages probably begin with a long-term increase in the earth’s average temperatures. _______
Fill-in The Blank:
21. The two main types of glaciers are valley glaciers and ________ ice sheets.
22. During an ____ age, glacial advances alternate with glacial retreats.
23. The ____________ Theory is the most commonly accepted theory of the cause of ice ages.
24. Glaciers move by _______ slip and internal plastic flow.
25. When glaciers ______, they deposit their _______, creating features that can be readily indentified.
Short Answers:
26. What main type of glacier covers Greenland?
27. How is a cirque produced?
28. What happens to the sea level during an ice age?
29. What did Milutin Milankovitch propose?
30. Describe how glaciers form.