1. Which observation supported Wegener’s theory of continental drift? Different continents had different rock types. Identical fossils were found on continents that were far apart. Each continent had mountain ranges. The earth’s rotation could provide enough force to move the continents apart. 2. Which feature do you usually see when tectonic plates move apart? ( volcanoes earthquakes mountains new ocean ridges and seafloor 3. What happens in a convection cell? Cold, dense material sinks while hot, less dense material rises. Cold, dense material moves horizontally, while hot, less dense material moves vertically. Hot, less dense material moves horizontally, while cold, dense material moves vertically. Hot, less dense material sinks while cold, dense material rises. 4. In the diagram of the earth’s interior, which part causes the diffraction of P waves made by earthquakes? A B C D. 5. In the diagram of the earth's interior, where does the material that forms volcanoes originate? C A D B 6. In the diagram of the earth’s interior, which part is the densest? C B D A. 7. The sides of a composite-cone volcano are interrupted by which feature? fumaroles craters calderas conduits 8. Which material erupted from volcanoes is important in acid rain? ash carbon dioxide carbon monoxide sulfur dioxide 9. What type of volcano is found along a convergent boundary? rift composite cone shield fissure 10. You have a geological site associated with earthquake activity and a mountain range. You look offshore, but do not find any trenches. What type of boundary are you dealing with? continental-continental convergent boundary divergent boundary undersea oceanic-oceanic convergent boundary oceanic-continental convergent boundary 11. The S-P interval of seismic waves recorded at a seismometer is 8 minutes. Approximately how far away is the earthquake’s epicenter from the seismometer? [equation: (S-P interval) = 0.00146 (distance to epicenter)] 8 km 550 km 5,500 km less than 1 km 12. What kind of plate boundary forms a mountain rainge and a deep ocean trench like the Andes Mountain Range and Peru-Chile trench? divergent plate boundaries oceanic-continental convergence continental-continental convergence transform plate boundaries 13. What is the illustration an example of? hot spot continental-continental convergence boundary oceanic-continental convergence boundary oceanic-oceanic convergence boundary 14. What is the illustration an example of? oceanic-oceanic convergence boundary continental-continental convergence boundary divergent boundary transform boundary. 15. In the illustration, which site is an example of a hot-spot volcano? A B C D 16. In the illustration, which site is an oceanic spreading center? A B C D. 17. In the illustration, which site indicates a fault? D C B A 18. In the illustration, at which site would you expect to find basaltic magma eruptions without volcanoes? A B C D 19. Which of the following features was not created by subduction? Japan Mariana Trench Alps Andes. 20. Paleomagnetic evidence confirms which of the following? seafloor spreading hot spots subduction earthquakes
