Physical Science
10th Edition
ISBN: 9780073513898
Author: Bill Tillery
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 20, Problem 7PEB
The elevation of a streambed is surveyed near a bridge to be 2,367 m. At another bridge 12.2 km downstream the elevation is 2,232 m. What is the gradient of this stream?
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Chapter 20 Solutions
Physical Science
Ch. 20 -
1. Small changes that result in the breaking up,...Ch. 20 -
2. The process of physically removing weathered...Ch. 20 -
3. Muddy water rushing downstream after a heavy...Ch. 20 -
4. The physical breakup of rocks without any...Ch. 20 -
5. Chemical weathering, the dissolving or...Ch. 20 -
6. The process of peeling off layers of rock,...Ch. 20 -
7. The weak acid formed by the reaction of water...Ch. 20 -
8. A mixture of unconsolidated weathered earth...Ch. 20 -
9. Decay-resistant, altered organic material...Ch. 20 -
10. Two minerals that usually remain after...
Ch. 20 -
11. Weathered materials move to lower elevations...Ch. 20 -
12. The slow movement downhill of soil on the...Ch. 20 -
13. The wide, level floor of a valley built by a...Ch. 20 -
14. The deposit at the mouth of a river where...Ch. 20 -
15. Rock fragments frozen in moving glacier ice...Ch. 20 -
16. The agent that has the least ability to...Ch. 20 - Prob. 17ACCh. 20 - Prob. 18ACCh. 20 -
19. What is the pH of natural rainwater?
a. 5.0...Ch. 20 -
20. Freezing water exerts pressure on the wall...Ch. 20 -
21. Of the following rock weathering events, the...Ch. 20 -
22. Which of the following would have the...Ch. 20 -
23. Broad meanders on a very wide, gently sloping...Ch. 20 - Prob. 24ACCh. 20 -
25. A likely source of loess is
a. rock...Ch. 20 -
26. The landscape in a dry climate tends to be...Ch. 20 -
27. Peneplains and monadnocks are prevented from...Ch. 20 -
28. The phrase weathering of rocks means
a. able...Ch. 20 -
29. What are you doing to a rock if you pick up...Ch. 20 -
30. What are you doing to the fragments of a...Ch. 20 -
31. What are you doing to a rock if you dissolve...Ch. 20 - Prob. 32ACCh. 20 -
33. The soil called loam is
a. all sand and...Ch. 20 -
34. A moraine is a
a. wind deposit.
b. glacier...Ch. 20 -
35. The breaking up, crumbling, chemical...Ch. 20 -
36. Crushing of rock at a quarry to make...Ch. 20 -
37. Fragments of rocks fall into a mountain...Ch. 20 -
38. Tree roots grow and expand, and eventually...Ch. 20 -
39. Damage to the Lincoln Memorial by rain and...Ch. 20 -
40. Ferromagnesian minerals will react with...Ch. 20 -
41. You are planning a garden and need a soil...Ch. 20 -
42. The formation of a shallow layer of water by...Ch. 20 -
43. The most extensive glaciers in the United...Ch. 20 -
44. Continental glaciers are found...Ch. 20 -
45. An example of a chemical weathering process...Ch. 20 - Prob. 1QFTCh. 20 -
2. Granite is the most common rock found on...Ch. 20 -
3. What other erosion processes are important as...Ch. 20 -
4. Describe three ways in which a river erodes...Ch. 20 - Prob. 5QFTCh. 20 - Prob. 6QFTCh. 20 -
7. What is a glacier? How does a glacier erode...Ch. 20 -
8. What is rock flour and how is it produced?
Ch. 20 -
9. Could a glacier erode the land lower than sea...Ch. 20 -
10. Explain why glacial erosion produces a...Ch. 20 - Prob. 11QFTCh. 20 - Prob. 12QFTCh. 20 -
13. What essential condition must be met before...Ch. 20 -
14. Compare the features caused by stream...Ch. 20 -
15. Compare the materials deposited by streams,...Ch. 20 -
16. Why do certain stone buildings tend to...Ch. 20 - Prob. 17QFTCh. 20 -
18. Discuss all the reasons you can in favor of...Ch. 20 - Prob. 1FFACh. 20 -
2. Speculate whether the continents will ever be...Ch. 20 - Prob. 3FFACh. 20 - Prob. 1PEBCh. 20 -
2. The average rate of chemical weathering of...Ch. 20 -
3. A slope is creeping at a rate of 1.2 mm/yr. A...Ch. 20 - Prob. 4PEBCh. 20 - Prob. 5PEBCh. 20 - Prob. 6PEBCh. 20 -
7. The elevation of a streambed is surveyed near...Ch. 20 -
8. Each year, sheet erosion removes 0.9 mm of...Ch. 20 - Prob. 9PEBCh. 20 - Prob. 10PEBCh. 20 -
11. The discharge (Q) of a stream is the velocity...Ch. 20 -
12. What is the velocity (v) of a stream with a...Ch. 20 - Prob. 13PEBCh. 20 -
14. A 1998 survey of glacial end moraines...Ch. 20 -
15. Rates of tectonic uplift can be determined...
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