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8th Science U7L3

Weathering, Erosion, and Deposition.

DefinitionTerm
The natural process by which atmospheric and environmental agents, such as wind, rain, and temperature changes, disintegrate and decompose rocks. weathering
The process by which wind, water, ice, or gravity transports soil and sediment from one location to another. erosion
In geology, the process in which material is laid down. deposition
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. physical weathering
The chemical breakdown and decomposition of rocks by natural processes in the environment. chemical weathering
Wearing away by scraping or rubbing. abrasion
separation of successive thin shells, or spalls, from massive rock. exfoliation
a reaction with oxygen, occurring when rock is exposed to oxygen in the air or in water; Elements in the rock such as iron or copper combine with oxygen to form new chemical compounds. oxidation
precipitation (rain) that is more acidic than normal; caused by chemical air pollutants combining with water vapor in air; the most common pollutants are sulfur dioxide (SO2) and nitrogen oxides (NOx). acid precipitation
Created by: ashaver
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