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Location: webtextbook > earth_internal_processes > Plate Tectonics
Unifying Concept: S.C.D.1.4.3 know that changes in Earth's climate, geological activity, and life forms may be traced and compared.
S.C.D.1.4.4 know that Earth's systems and organisms are the result of a long, continuous change over time.
Plate Tectonics
Click on the above image to read the USGS on-line edition about Plate Tectonics
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