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MEA 200 Exam 1 NCSU Prep Questions With Already Passed Answers.
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big bang - Answer -still energy left from explosion -discovered in 1960s -assumes earth came from material -Kant created most pop model of formation (planet accretion) nebula - Answer beginning form of planets many bump into others and combine earths composition - Answer -more dense material in center -heterogeneous (bc heat and dense elements melt and flow) -accretion -compression -radioactive decay 3 layers of earth - Answer -based on composition -core, mantle, crust -metallic core sank to center lithosphere - Answer -rigid outer covering -crust and top of mantle -tectonic plates asthenosphere - Answer -weak solid that flows -bottom of mantle -tectonic plates float on it
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