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weathering & erosion

vocabulary

TermDefinition
weathering the physical or chemical breakdowns of rocks and minerals into smaller pieces or aqueous solutions on Earth's surface
mechanical weathering any weathering processes that cause physical disintegration of exposed rock without any change in the chemical composition of the rock
chemical weathering the erosion of rocks caused by chemical reactions (mostly by water substances & substances dissolved in it)
soil the fertile, outermost layers of Earth's crust; composed of bits of rocks and minerals mixed with decomposing plant and animal materials
organic naturally occurring substances created by an organism's body processes
matter material that has mass and takes up some amount of space
erosion the process by which wind, water, ice, gravity, or other natural forces move sediment over Earth's surface
roots a plant organ that takes in water and nutrients and usually anchors it in place
topography detailed
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