Physical Science (12th Edition), Standalone Book
12th Edition
ISBN: 9781260150544
Author: Bill W. Tillery
Publisher: McGraw Hill Education
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Textbook Question
Chapter 20, Problem 2FFA
Speculate whether the continents will ever be weathered and eroded flat, at sea level. Provide evidence to support your speculation.
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Chapter 20 Solutions
Physical Science (12th Edition), Standalone Book
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 - Prob. 7ACCh. 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 - Prob. 42ACCh. 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. 1PEACh. 20 - Prob. 2PEACh. 20 - Prob. 3PEACh. 20 - Prob. 4PEACh. 20 - Prob. 5PEACh. 20 - Prob. 6PEACh. 20 - Prob. 7PEACh. 20 - Prob. 8PEACh. 20 - Prob. 9PEACh. 20 - Prob. 10PEACh. 20 - Prob. 11PEACh. 20 - Prob. 12PEACh. 20 - Prob. 13PEACh. 20 - Prob. 14PEACh. 20 - Prob. 15PEACh. 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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- What keeps Earths interior warm today?arrow_forwardWhat is the volume of new oceanic basalt added to Earth’s crust each year? Assume that the thickness of the new crust is 5 km, that there are 60,000 km of rifts, and that the average speed of plate motion is 4 cm/y. What fraction of Earth’s entire volume does this annual addition of new material represent?arrow_forwardIn what ways is Earth unique among the Terrestrial worlds?arrow_forward
- What evidence can you give that the Atlantic Ocean is growing wider?arrow_forwardWhich is the most geologically active Terrestrial world? Why?arrow_forwardExplain briefly how the following phenomena happen on Earth, relating your answers to the theory of plate tectonics A. earthquakes B. continental drift C. mountain building D. volcanic eruptions E. creation of the Hawaiian island chainarrow_forward
- Explain how continental crust and oceanic crust are like icebergs in water.arrow_forwardSince most volcanic activity on the Earth is aresult of plate tectonics, what does the lack of volcanic activity onthe Moon tell us about whether plate tectonics happens on theMoon?arrow_forwardA chain of undersea volcanoes has a length of 7,400 km today and the first volcano formed 53 million years ago. How fast is the plate moving each year? (Enter your answer in cm/yr.)arrow_forward
- If the Atlantic seafloor is spreading at 2.9 cm/year and is now 6,350 km wide, how long ago (in years) were the continents in contact? .......yr How does that time span compare to the age of Earth? (Enter your answer as a fraction of Earth's age.)arrow_forwardThe theory of plate tectonics states that Earth’s plates are always in motion. What geological evidence supports this statement?arrow_forwardHow do island chains located in the centers of tectonic plates, such as the Hawaiian-Emperor chain, indicate ongoing plate tectonic activity?arrow_forward
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