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Chapter 6 Study Guide Multiple choice Questions 1. What is the outermost layer of Earth called? T 2. In which direction does the San Andreas fault extend from the California-Mexico border to northern California? TECs4.2.1 3. What is the liquid layer of Earth’s core called? TECs1.1.1 4. What type of fault usually occurs because of tension? TECs1.1.1 5. What type of fault usually occurs because of compression? TECs3.1.1 6. Where does sea-floor spreading take place? TECs1.3.1 7. In a reverse fault, where does the hanging wall move relative to the footwall? TECs3.1.1 8. In a normal fault, where does the hanging wall move relative to the footwall? TECs3.1.1 9. How long has California been at an active plate boundary? 10. What is the area where two tectonic plates meet called? TECs2.1 11. Which of these did NOT provide evidence for continental drift? (what does provide evidence for continental drift) 12. What type of boundary is formed when plates collide? Ts2.1.1 13. Which of the following forms the boundary between the North American plate and the Pacific plate? TECs4.2.1 14. What type of boundary is formed when plates slide past each other? 15. According to the continental drift theory, a single, huge continent once existed called TECs1.3.1 16. What type of boundary is formed when plates separate? Matching 2 34. Describe the role of the asthenosphere in the movement of tectonic plates. s.2.1 35. How does the position of a hanging wall relative to the footwall give evidence of the stress placed on a rock layer? TECs3.1.2 (extra credit) 36. How does sea-floor spreading provide evidence that the continents are moving? TECs1.3 37. If scientists were able to drill through the Earth’s crust, would it be easier to drill through oceanic crust or continental crust? Explain your answer CONCEPT MAPPING 38. South America Laurasia Gondwana North America India Pangaea