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Chapters 3 & 9

TermDefinition
weathering the physical and chemical processes that change objects on Earth's surface over time
mechanical weathering rocks are broken down into smaller pieces by physical processes; also called physical weathering
chemical weathering chemical reactions change the materials that hold rocks together, forming new substances
erosion the transport of weathered material from one location to another
deposition the laying down or settling of eroded material
coastline a boundary between land and the ocean that is constantly changing
dune a mound of wind-deposited sand
river a large, natural stream of water that flows into an ocean or other large body of water, such as a lake
mountain a region of increased elevation on Earth’s surface that rises to a peak
glacier a mass of gradually moving or flowing ice
delta a deposit, formed by sediment, that accumulates at the mouth of a river
lake a body of fresh or salt water that is surrounded by land
deforestation the removal of large areas of forests for human purposes
urbanization the development of land for houses and other buildings near a city
desertification the development of desert-like conditions due to human activities and natural processes
pollution the contamination of the environment with substances that are harmful to life
Popular Earth Science sets

 



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