Explores the physical structure of the Earth's landforms, including what they are, how they look, how they were created and change over time, and major geological events associated with each. - Basin -- Canyon -- Cave, cavern, and sinkhole -- Coastline and beach -- Continental margin -- Coral reef -- Delta -- Dune and other desert features -- Fault -- Floodplain -- Glacial landforms and features -- Hot spring and geysers -- Lake -- Landslide and other gravity movements -- Mesa and butte -- Meteorite crater -- Mountain and hill -- Ocean basin -- Plain -- Plateau -- River, stream, and waterfall -- Valley -- Volcano.
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