physical weathering - a process that breaks big rocks into smaller rocks without changing the minerals they contain, chemical weathering - a process that breaks down rocks by changing the minerals they contain, erosion - any process or force that moves sediments to new locations, deposit - 1. v. to put or leave something in a particular place; 2. n. material laid down or left by a natural process, conclude - to decide something or form an opinion based on information you have, firsthand - coming directly from actually seeing or experiencing something, sea level - the average height of the ocean’s surface, underlie - to be located under something, seamount - an underwater volcano that forms wherever magma is erupting through oceanic crust, ocean trench - a narrow, extremely deep valley formed when the seafloor dips down as one tectonic plate slides under another, heave - 1. to move up and down over and over; 2. to lift, pull, push, or throw with a lot of effort, fault-block mountains - mountains formed when gigantic blocks of rock move up and down along faults, fold mountains - mountains formed when rocks are pushed up into huge folds by moving tectonic plates, dome mountains - mountains generally formed when magma pushes upward into Earth’s crust from the mantle and cools into igneous rock underground, causing the crust above it to bulge; usually occur as isolated mountains on otherwise flat plains,

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