'In geologic theory, the Earth's outer shell has about 12 big these, moving around tectonically'
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SCIENCE: In geologic theory, the Earths outer shell has about 12 big these, moving around tectonically
In geologic theory, the Earth's outer shell has about 12 big these, moving around tectonically
In geologic theory, the Earth's outer shell has about 12 big these, moving around tectonically
SCIENCE
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SCIENCE