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Plate Tectonics Name: 1. 2. Date: 4. Which feature would most likely be forming at converging continental tectonic plate boundaries? A. rift valley B. deep trench C. volcanic cone D. uplifted mountain Which landform would most likely be created when two oceanic plates converge? A. a volcanic island arc B. a large watershed area C. a smooth continental shelf 5. Which of the following is the best evidence that Earth's continents were once in vastly di erent positions than they are today? A. Penguins are found only in the Southern Hemisphere. B. Fossils of tropical plants are found in Antarctica. C. Volcanoes encircle the Paci c Ocean. A. mountain building at a continent-continent convergent boundary B. magma rising up from the mantle at a divergent boundary C. two tectonic plates sliding past one another at a transform boundary D. subduction of one oceanic plate under another at a convergent boundary D. a chain of continental mountains 3. Which of the following is most responsible for the formation of new crust at the edge of a tectonic plate? Of the following statements, which best supports the continental drift theory? A. All oceans are salty. B. Igneous rocks are found on all continents. C. Fossils of the same species of extinct land plants have been found in both South America and Africa. D. Early humans migrated to North America over a land bridge from eastern Asia. D. Major rivers form deltas from continental erosion. page 1 Earth scientists use theories and principles to help determine the relative age and formation of rocksand landforms. Superposition Cross-cutting Unconformities Younger sedimentary rock layers are generally found on top of older rock layers. Faults and igneous intrusions are younger than the rock they cut through. An eroded surface that separates older rocks below from younger rocks above. page 2 Plate Tectonics 7. 6. cross section view How was the mountain shown above most likely formed? A. Plates A and B are moving towards each other. B. Plates A and B are moving apart from each other. C. Plate A is moving away and Plate B is stationary. Which of the following best describes Earth's tectonic plates? A. They move away from each other at the equator. B. They move because of convection currents in the mantle. C. They collide at midocean ridges. D. They form at subduction zones. D. Plate A is stationary and Plate B is moving away. page 3 Plate Tectonics Problem-Attic format version 4.4.210 c 2011–2014 EducAide Software _ Licensed for use by Mindy Mahar Terms of Use at www.problem-attic.com Plate Tectonics 1. Answer: D 2. Answer: A 3. Answer: B 4. Answer: B 5. Answer: C 6. Answer: A 7. Answer: B 05/15/2014