The document discusses various landforms and features of the Earth's surface and interior. It defines a landform as a physical feature on the Earth's surface and describes features of the ocean floor such as ocean basins, continental shelves, slopes, canyons, and rises. It also discusses how elevation and topographical maps are used to map Earth's landforms. Finally, it outlines Earth's major layers including the atmosphere, hydrosphere, crust, mantle, outer core, and inner core.