NAME HOMEWORK ASSIGNMENT #4 MATERIAL COVERS CHAPTERS 19, 20, 21, & 2
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1 NAME HOMEWORK ASSIGNMENT #4 MATERIAL COVERS CHAPTERS 19, 20, 21, & 2 Assignment is due the beginning of the class period on December 14, Mark answers on a scantron sheet, which will be provided. Each multiple-choice question is worth 1 pt. for a total of 32 pts. for this assignment. The following questions refer to the cross section below. C B * A 1. Point A, where slip initiated during the earthquake, is called the. A) Dip B) Epicenter C) Focus D) Strike 2. Point B is called the earthquake. A) Dip B) Epicenter C) Focus D) Strike 3. What type of faulting is illustrated in the cross section above? A) normal faulting B) reverse faulting C) left-lateral strike-slip faulting D) right-lateral strike-slip faulting Due December 14,
2 The following questions refer to the seismographic recording (seismogram) of an earthquake below: A B C Time (minutes) 4. What causes the up-and-down wiggles on the seismogram? A) electromagnetic pulses B) ground vibrations C) tsunami waves D) variations in air pressure 5. Which sets of waves travel through the Earth's interior? A) set A B) set B C) sets A and B D) sets A, B, and C 6. Which of the following types of seismic waves arrive at a seismograph first? A) P waves B) S waves C) surface waves D) All of these waves arrive at the same time. 7. What type of seismic waves are S waves? A) compressional waves B) shear waves C) surface waves D) Tsunamis 8. Tsunamis can be generated by. A) undersea earthquakes B) undersea landslides C) the eruption of an oceanic volcano D) all of the above Due December 14,
3 9. The oldest rocks tend to be found. A) along the margins of continents B) along the margins of ocean basins C) in the interior of continents D) in the interiors of ocean basins 10. Which of the following processes is responsible for the topography of the Basin and Range province in western North America? A) normal faulting B) strike-slip faulting C) thrust faulting D) Upwarping 11. What are cratons made up of? A) orogens and platforms B) orogens and shields C) platforms and shields D) orogens, platforms, and shields 12. Which of the following accretion processes has not occurred along western North America? A) accretion along a transform fault B) accretion during continent collision C) accretion of a continental fragment D) accretion of an island arc 13. What is an orogeny? A) a broad exposure of deformed metamorphic and igneous rocks B) a general term for mountain-building processes C) a special type of reverse fault D) a theory that explains the uplift of continents after large ice sheets melt 14. Which of the following mountain belts formed as a result of a collision between two continents? A) Appalachians B) Himalayas C) Urals D) all of these 15. What is the approximate distance from the surface to the center of the Earth? A) 700 km B) 2900 km C) 6400 km D) 24,000 km Due December 14,
4 The following questions refer to the cross section of the Earth depicted below. A B C D 16. Which region in the Earth is molten? A) region A B) region B C) region C D) region D 17. Which region in the Earth consists primarily of solid iron? A) region A B) region B C) region C D) region D 18. In which region of the Earth is conduction the dominant heat transfer mechanism? A) region A B) region B C) region C D) region D 19. Which layer in the Earth does not transmit S waves? A) crust B) inner core C) mantle D) outer core Due December 14,
5 20. How thick is the oceanic crust? A) approximately 7 km B) approximately 35 km C) approximately 70 km D) approximately 240 km 21. Which of the following statements about the Moho (Mohovoricic discontinuity) is false? A) The Moho marks the top of a partially molten layer. B) The Moho separates denser rocks below from less dense rocks above. C) The Moho separates the crust from the mantle. D) The speed of seismic waves increases as they pass down through the Moho. 22. What drives plate tectonics? A) erosion B) solar energy C) thermal conduction D) thermal convection 23. Who proposed the theory of continental drift? A) Charles Darwin B) Harry Hess C) Alfred Wegener D) J. Tuzo Wilson 24. When was the theory of plate tectonics developed? A) 1860s B) 1920s C) 1940s D) 1960s Use the following possible answers for the questions below. I. convergent plate boundaries II. divergent plate boundaries III. transform fault boundaries 25. Where is new lithosphere created? B) II C) III D) I and II Due December 14,
6 26. Where does volcanism occur? B) I and II C) II and III D) I, II, and III 27. Where are the world's highest mountain ranges created? B) I and II C) II and III D) I, II, and III 28. Which type(s) of plate boundaries indicate(s) the direction of relative plate motions? B) II C) III D) I, II, and III 29. In which ocean are most of the world's convergent plate margins located? A) Arctic Ocean B) Atlantic Ocean C) Indian Ocean D) Pacific Ocean 30. The east coast of North America is. A) a convergent plate boundary B) a divergent plate boundary C) a transform plate boundary D) not a plate boundary 31. The west coast of South America is. A) a convergent plate boundary B) a divergent plate boundary C) a transform fault boundary D) not a plate boundary 32. Which of the following plates is moving the fastest? A) the African plate B) the Eurasian plate C) the North American plate D) the Pacific plate Due December 14,
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