Plate Tectonics
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Who came up with the theory of continental plates
Wegener
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What evidence supports wegener’s theory
Similar fossils found on in different parts of thew world
sedimentary rocks containing shells found in mountains
truncated geological features- Appalachians, Scottish Highlands, North Scandinavia, all match up. discovery of mid Atlantic rift
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What is the lithosphere
The crust and the upper most layer of the mantle.
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How thick is the ocean crust
7km
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How thick is continental crust
35km
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How hot can the mantle be
4000 degrees
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How hot can the outer core get
6000 degrees
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how deep is the earths core
6354km
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