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6R Geology

Terms from Unit 2 Earthquakes and Volcanoes

QuestionAnswer
What process occurs along the mid ocean ridge and creates new land? Sea-floor spreading
Large sections of the Earth's lithosphere are called ____________________. plates
The thickest layer of the Earth Mantle
When 2 plates come together or collide, it is called a __________________boundary. Convergent
When continental crust collides with continental crust, what is the result? Mountains form
What process occurs when dense oceanic crust is pushed back down into the mantle? subduction
When two plates pull apart or separate, it is called a ___________________boundary. divergent
What is the name of the supercontinent that existed 300 m.y.a.? Pangaea
The large sections of the lithosphere are in slow constant motion, driven by the convection current. Which theory is this? Theory of Plate Tectonics
What are the four layers of the Earth, in order, from the center to the surface? inner core, outer core, mantle and crust
Who came up with the Continental Drift Theory? Alfred Wegener
Created by: gpugh0918
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