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21 Cards in this Set

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Erosion
the wearing away of land by water, wind, waves, ice, and other agents
Rock Weathering
the process that breaks up rocks and causes them to decay.
Sediment
small particles of mud, sand, or gravel created by rock weathering
Glaciers
a thick mass of ice that moves slowly across Earth's surface
Lava
melted liquid rock, or magma, from within Earth that spills out on the planet's surface
volcano
an opening in Earth's crust through which lava flows; the surface feature created by the lava
fold
a feature of Earth's crust created by the bending of rock layers.
fault
a feature of Earth's crust created by the breaking and movement of rock layers below the surface.
Earthquakes
the shock waves, or vibrations, caused by movement along a fault
Landforms
a shape on Earth's surface
Plains
a nearly flat area of land
Plateaus
an elevated flatland
Plate tectonics
theory that Earth's crust is divided into several rigid slow moving plates
Mid-ocean ridge
a chain of mountains on the ocean floor formed when molten rock rises from below the seafloor to fill openings created by plate movement.
Abyssal plains
a large, flat area on the ocean floor
subduction
the process in which a tectonic plate collides with and dives under another tectonic plate
Trench
a long, deep valley on the ocean floor caused by subduction
relief
the difference in elevation between the top and bottom of a landform
floodplain
a landform of level ground built by sediment deposited by a river or stream.
Alluvial Fan
a fan-shaped deposit of sediment located at the base of a mountain
Delta
the landform at the mouth of a river created by deposits of sediment