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Geology is the study of how the Earth was formed and how it changes. The two main fields of geology are physical geology and historical geology. Important branches within these fields include: Geophysics, Mineralogy, Oceanography, Glacial geolohy, and Paleontology.
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Caves| dinosaurs| Earth| earth sciences| Earthquakes| fossils| glaciers| National parks| Natural history| Rocks| Specific Dinosaurs| time| volcanoes|

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