constructive process - land is built up by uplift or deposition, destructive process - land is broken down by weathering and erosion, uplift - forces that lift land up such as colliding plates, magma plumes, or volcanoes, weathering - action of wind, water, ice and other factors that causes rock to break up into smaller pieces, chemical weathering - rock is dissolved or broken down by chemical action, mechanical weathering - rock is physically broken down into smaller pieces by wind, water, or ice, frost wedging - rock is split apart by the freezing and thawing action of water, erosion - process of moving sediment away by wind, water, ice or gravity, deposition - process by which sediments are laid down in a new location, crustal deformation - changes to earth’s surface due to plate tectonics, sediment - smaller pieces of rock such as gravel or sand or dirt that settles to the bottom of a liquid, eruption - volcanic action that deposits material on earth’s surface (ash, cinders, lava flow), mass wasting - any process that moves a large amount of sediment downhill with gravity (examples: landslide, rock fall, mudflow, slump, creep),

8_Earth Processes

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