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How are the Earth's crust and jigsaw alike?

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User Vintprox
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The earths surface is composed tectonic plates of basaltic oceanic crust with lighter granitic continental crust floating in isostatic balance on the oceanic crust.
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User Attila Nyers
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The earth's surface is composed tectonic plates of basaltic oceanic crust with lighter granitic continental crust floating in isostatic balance on the oceanic crust.
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User Onestarblack
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