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Chap1 Sec3

Changes on Earth's Surface

QuestionAnswer
weathering The breakdown of rock at or near the earth's surface into smaller pieces
mechanical weathering The actual breaking up or physical weakening of rock by forces such as ice and roots
chemical weathering The process by which the actual chemical structure of rock is changed, usually when water and carbon dioxide cause a breakdown of the rock
acid rain Rain whose high concentration of chemicals, usually from industrial pollution, pollutes water, kills plant and animal life, and eats away at the surface of stone and rock. a form of chemical weathering
erosion The movement of weathered materials, including gravel, soil, and sand, usually caused by water, wind, and glaciers
sediment Particles of soil, sand, and gravel carried and deposited by wind or water
loess Fine-grained, mineral-rich loam, dust, or silt deposited by the wind
glacier A huge, slow-moving mass of snow and ice
moraine A ridgelike mass of rock, gravel, sand, and clay carried and deposited by a glacier
Created by: mrsbbaum