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GCS Earth Science Unit B Test - Plate Tectonics 1. What plate movement mechanism is represented by the diagram below: A. B. C. D. Convection Ridge Push Slab Pull Subduction 2. How does the theory of plate tectonics explain the motion of continents? 5. Which of the following landforms is likely to occur at the below plate boundary? A. B. C. D. A mid-ocean ridge A strike-slip fault A shield volcano A deep sea trench 6. In the diagram below which statement is true about the material enclosed inside the black box? A. It states that continents are on several plates floating on top of the ocean B. It states that the continents are being pulled apart by the powerful force of ocean currents C. It states that the Earth’s crust is breaking up into hundreds of pieces due to gravitational forces D. It states that the Earth’s crust is broken up into plates and they move because of convection currents in the mantle 3. Which of the following plate boundaries is associated with volcanic island arcs? A. B. C. D. Divergent Oceanic-Oceanic Convergent Oceanic-Continental Convergent Transform 4. Which of the following can form as the result of a divergent plate boundary? A. B. C. D. A continental volcanic arc due to collision A continental mountain due to collision A mid-ocean ridge due to separation An ocean trench due to separation A. The material is lava because it is above the surface B. The material is magma because it is below the surface C. The material is lava because it is below the surface D. The material is magma because it is above the surface GCS Earth Science Unit B Test - Plate Tectonics 7. Which of the following statements can be concluded from the below map (the red dots represent volcanoes and earthquakes) : 11. Which type of earthquake will be the most destructive? A. One with a magnitude of 4.5 and a deep focus B. One with a magnitude of 4.5 and a shallow focus C. One with a magnitude of 3.5 and a deep focus D. One with a magnitude of 3.5 and a shallow focus A. There is a convergent plate boundary around the Pacific Ocean B. South America was once completely underwater C. The Indian Ocean is the most tectonically active place on Earth D. North America and Europe are moving towards each other 8. What is the term given to a mudflow triggered by a volcanic eruption? A. B. C. D. Pyroclastic Cloud Lahar Creep Slump 9. The location under the crust where an earthquake originates is called the: A. B. C. D. Focus Epicenter Fall Zone Magma Chamber 10. With increasing distance from an earthquake the P-S wave lag time: A. B. C. D. Increases Decreases Stays the same Increases then decreases 12. The following diagram represents the anatomy of an earthquake. Which point represents the epicenter? A. B. C. D. Point A Point B Point C Point D 13. Which of the following is most likely to occur along the Ring of Fire? A. B. C. D. Flooding and Groundwater Pollution Earthquakes and Volcanoes Sinkholes and Landslides Salt Water Intrusion and Acid Rain 14. How have Earth forces altered the Appalachian Mountains since their formation? A. B. C. D. They have been eroded by wind and water They have expanded in size They have become volcanically active That have moved closer to the coast 15. Which hazard is generally not associated with a volcanic eruption? A. B. C. D. Ash Lahar Sinkhole Lava flow GCS Earth Science Unit B Test - Plate Tectonics 16. The map represents the distribution of earthquakes along the state of North Carolina: 19. Which of the following is LEAST LIKELY to contribute to the formation of a barrier island? A. B. C. D. From the map above it can be concluded that there is a fault in: A rise/drop in sea level A hurricane Sediment deposition caused by wave action An earthquake 20. What process lead to the formation of the Appalachian Mountains in Western North Carolina? The coastal plains of North Carolina The piedmont of North Carolina The mountains of North Carolina Off the coast of North Carolina A. The opening of the Atlantic Ocean B. The collision of Africa with North America C. The separation of the African and North American plates D. The rifting of Pangea in the early Triassic 17. The line that separates the Piedmont from the Coastal Plains on the below map is known as what? 21. The following diagram represents the rock cycle: A. B. C. D. A. B. C. D. The Ring of Fire The Fall Zone The Subduction Line The Zone of Saturation 18. Sea level changes off the coast of North Carolina are responsible for the formation of what shoreline landform? A. B. C. D. The Outer Banks The Appalachian Mountains The Fall Zone The Catawba River 22. The following diagram represents a soil profile: Which type of rock is represented by letter F? A. B. C. D. Igneous Sedimentary Foliated Metamorphic Non-Foliated Metamorphic 25. Which geohazard generally takes place in the GCS Earth Science Unit B Test - Plate Tectonics mountains? A. B. C. D. Landslide Earthquake Tsunami Flooding Which of the following soil horizons contains the most amount of humus? A. B. C. D. Horizon X Horizon Z Horizon W Horizon Y 23. Which of the following is most likely to contribute to the formation of an igneous rock? A. B. C. D. Melting Erosion Pressure Cooling 24. Which process breaks down rocks and changes the overall composition of the rock? A. B. C. D. Physical Weathering Erosion Deposition Chemical Weathering Question Correct Answer Standard GCS Earth Science Unit B Test - Plate Tectonics 1 A 2.1.1 2 D 2.1.1 3 B 2.1.1 4 C 2.1.1 5 D 2.1.1 6 B 2.1.1 7 A 2.1.1 8 B 2.1.1 9 A 2.1.1 10 A 2.1.1 11 B 2.1.1 12 B 2.1.1 13 B 2.1.2 14 A 2.1.1 15 C 2.1.1 16 C 2.1.2 17 B 2.1.1 18 A 2.1.1 19 D 2.1.1 20 B 2.1.1 21 B 2.1.1 22 A 2.1.3 23 D 2.1.1 24 D 2.1.3 25 A 2.1.4