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Chap1 Sec3
Changes on Earth's Surface
| Question | Answer |
|---|---|
| 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
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