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Unit 8

Unit8Weathering,Erosion,Deposition,+Landforms

QuestionAnswer
1. Weathering The natural process by which atmospheric and environmental agents, and such as wind, rain, and temperature changes, disintegrate and decompose rocks
2. Physical weathering 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.
3. Abrasion The process by which the rock is reduced in size by the scraping action of other rocks driven by water, wind, and gravity.
4. Chemical weathering The chemical breakdrown and decomposition of rocks by natural processes in the environment.
5. Oxidation A chemical reaction in which a material combines ith oxygen to form new material; in geology, oxidation is a form of chemical weathering.
6. Acid precipitation Precipitation such as rain, sleet, or snow, that contains a high conservation of acids, often because of the pollution of the atmosphere
7. Erosion The process by which wind, water, ice, or gravity transports soil and sediment from one location to another.
8. Deposition The process in which material is laid down.
9. Floodplain An area along a river that forms from sediments deposited when the river overflows its banks.
10. Delta A mass of material deposited in a triangular or fan shape at the mouth of a river or stream
11. Alluvial fan A fan-shaped mass of rock material deposited by a stream when the slope of the land decreases sharply.
12. Groundwater The water that is beneath Earth's surface.
13. Shoreline The boundary between land and a body of water.
14. Beach An area of the shorline that is made up of deposited sediment.
15. Sandbar A low ridge of sand deposited along the shore or a lake or sea.
16. Barrier Island A long ridge of sand or narrow island that lies parallel to the shore
17. Dune A mound of wind-deposited sand that moves as a result of the acton of wind.
18. Loess Fine-grained sediments of quartz, feldspar, hornblende, mica, and clay deposited by the wind.
19. Glacier A large mass of ice that exists year-round and moves over land.
20. Glacial drift The rock material carried and deposited by glaciers
21. Creep The slow downhill movement of weathered rock material
22. Rockfall The rapid mass movemnt of rock down a steep slope or cliff
23. Landslide The sudden movent of rock and soil down a slope
24. Mudflow The flow of a mass of mud or rock and soil mixed with a large amount of water
25. Mountain An area of significantly increased elevation on Earth's surface usually rising to a summit
26. Lake A filled or partially filled basin of fresh or salt water surround by land
27. River A large natural stream of water that flows across land surfaces within a channel.
28. Coastline A location where land and ocean surface meet.
Created by: Tyler Tj
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