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Covers in Separate How to Use This Study Guide, Introduction to Physical Geology, Atoms, Elements, and Minerals, Volcanism and Extrusive Rocks, Intrusive Activity and the Origin of Igneous Rocks, Weathering and Soil, Sediments and Sedimentary Rocks, Metamorphism, Metamorphic Rocks, and Hydrothermal Rocks, Time and Geology, Wasting, Streams, Stream Action and Landscaping, altogether 22 chapters and two review tests.