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Section of the Earth's Crust

The crust, Earth's outer layer, has Continental Crust (thick, land-based, with granite-like rocks) and Oceanic Crust (thin, ocean-based, with denser rocks). They meet at plate boundaries. Divergent boundaries create new crust, convergent boundaries form mountains or trenches, and transform boundaries cause earthquakes. Studying these unveils Earth's history and explains geological events.