QUIZ CHAPTER 3 1. The most likely mechanism causing the crustal plates to move is:

1. QUIZ CHAPTER 3 • 1. The most likely mechanism causing the crustal plates to move is: • a. convection cells in the mantle b. oceanic currents • c. rotation or the earth d. tidal forces • 2. The Mid-Atlantic Ridge system is covered by a thick layer of surface sediment deposited slowly over a long period of time. T/F • 3. Which of the following could be found along subduction zones? • a. oceanic trenches b. active earthquake zones • c. island arc systems d. all of the above are correct • 4. List the three types of plate boundaries. Convergent, divergent, transform • 5. List the two types of body waves released during an earthquake. Which one can only travel through a solid medium? P,S, S only solids • 6. The trench system located just off shore of the Hawaiian Islands is one of the deepest features within the Pacific Ocean. T/F

2. 7. Your friend (who knows nothing of plate tectonics) calls you on your cell phone and tells you that an ice comet is going to hit you on the top of your head in one year if you stay in your present location. However, it will miss you if you move 6 centimeters in any direction to get out of the way. a) Your first thought is “oh no, sea level is going to rise with the addition of water”. Then you stop and think about the rates of plate motion. Would you have to expend energy (move) to get out of the way of the comet? (Bonus: if so, what would be the minimum distance you would need to move so the comet misses you? If you don’t have to move what would be the distance the comet misses you by?) b)If you were in Hawaii, would you have to expend energy to get out of the way of the comet? (Bonus: if so, what would be the minimum distance you would need to move so the comet misses you? If you don’t have to move what would be the distance the comet misses you by?)