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Unit 8
Weathering, Erosion, Deposition and Landforms
| Term | Definition |
|---|---|
| weathering | the natural process by which atmospheric and environmental agents, such as wind, rain, and temperature changes, disintegrate and decompose rocks |
| physical weather | the mechanical breakdown of rocks into smaller pieces that is caused by natural processes and that does not change the chemical composition of the rock material |
| abrasion | the process by which rock is reduced in size by the scraping action of other rocks driven by water, wind, and gravity |
| chemical weathering | the chemical breakdown and decomposition of rocks by natural processes in the environment |
| oxidation | in geology, oxidation is a form of chemical weathering |
| acid precipitation | precipitation, such as rain, sleet, or snow, that contains a high concentration of acids, often because of the pollution of the atmosphere |
| erosion | |
| deposition | |
| floodplain | |
| delta | |
| alluvial fan | |
| ground water | |
| shareline | |
| beach | |
| sandbar | |
| barrier island |