Physical Science
11th Edition
ISBN: 9780077862626
Author: Bill Tillery, Stephanie J. Slater, Timothy F. Slater
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 18, Problem 20AC
The movement of one plate under another plate creates a
a. divergent boundary.
b. ridge.
c. subduction zone.
d. boundary zone.
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Chapter 18 Solutions
Physical Science
Ch. 18 - 1. The core of Earth is composed of
a. iron and...Ch. 18 - 2. The middle part of Earth's interior is
a....Ch. 18 - 3. The separation of materials that gave Earth its...Ch. 18 - 4. A vibration that moves through any part of...Ch. 18 - 5. The S-wave is a
a. longitudinal wave.
b....Ch. 18 - 6. Waves that occur where S- or P-waves reach the...Ch. 18 - 7. The three main areas of Earth’s interior are
a....Ch. 18 - 8. The boundary between the crust and the mantle...Ch. 18 - 9. The mantle is composed of
a. sulfides.
b....Ch. 18 - 10. Seismological studies suggests that the...
Ch. 18 - 11. Evidence from meteorite studies proposes that...Ch. 18 - 12. The layer in Earth where seismic waves sharply...Ch. 18 - 13. The layer that is broken up into plates that...Ch. 18 - 14. The name of the single large continent...Ch. 18 - 15. Records of the strength and directions of...Ch. 18 - 16. The chain of mountains found in the center of...Ch. 18 - 17. Long, deep, and narrow oceanic trenches are...Ch. 18 - 18. The theory that the lithosphere is composed of...Ch. 18 - 19. The plate boundary associated with the...Ch. 18 - 20. The movement of one plate under another plate...Ch. 18 - 21. Transform boundaries occur when
a. two plates...Ch. 18 - 22. What is the current theory about why the...Ch. 18 - 23. The seismic waves that cause the most damage...Ch. 18 - 24. Earth’s mantle has a chemical composition that...Ch. 18 - 25. From seismological data, Earth’s shadow zone...Ch. 18 - 26. The Mohorovicic discontinuity is a change in...Ch. 18 - 27. The oldest rocks are found in
a. continental...Ch. 18 - 28. The least dense rocks are found in
a....Ch. 18 - 29. The idea of seafloor spreading along the...Ch. 18 - 30. According to the plate tectonics theory,...Ch. 18 - 31. The presence of an oceanic trench, a chain of...Ch. 18 - 32. The presence of an oceanic trench with shallow...Ch. 18 - 33. The ongoing occurrence of earthquakes without...Ch. 18 - 34. The evidence that Earth's core is part liquid...Ch. 18 - 35. The surfaces of early planets in our solar...Ch. 18 - 36. The early Earth’s core is thought to have...Ch. 18 - 37. Indirect evidence that supports the theory of...Ch. 18 - 38. The oceanic crust is
a. thicker than the...Ch. 18 - 39. Seismic waves that do not travel through...Ch. 18 - 40. The fastest seismic wave is the
a. P-wave.
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a....Ch. 18 - 44. Earth’s magnetic field is thought to be...Ch. 18 - 45. Studies of the Mid-Atlantic Ridge provided...Ch. 18 - 46. Evidence that supports seafloor spreading does...Ch. 18 - 47. A geologic feature that was produced by...Ch. 18 - 48. Which type of plate boundary accounts for the...Ch. 18 - 49. Which type of plate boundary was responsible...Ch. 18 - 50. A famous transform boundary in the United...Ch. 18 - 51. Plate movement is measured by
a. reflected...Ch. 18 - 52. Islands that form when melted subducted...Ch. 18 - 1. Describe one theory of how Earth came to have a...Ch. 18 - 2. Briefly describe the internal composition and...Ch. 18 - 3. What is the asthenosphere? Why is it important...Ch. 18 - 4. Describe the parts of Earth included in the (a)...Ch. 18 - 5. What is continental drift? How is it different...Ch. 18 - 6. Rocks, sediments, and fossils around an oceanic...Ch. 18 - 7. Describe the origin of the magnetic strip...Ch. 18 - 8. Explain why ancient rocks are not found on the...Ch. 18 - 9. Describe the three major types of plate...Ch. 18 - 10. What is an island arc? Where are they found?...Ch. 18 -
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