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S1 Weathering/Soil

Weathering and Soil Formation

QuestionAnswer
Breaking down of rock and other substances at Earth's surface weathering
Movement of rock particles by wind, water, ice, or gravity erosion
The 2 types of weathering chemical & mechanical
Rock is physically broken down into smaller pieces mechanical weathering
5 forces of mechanical weathering release of pressure, plant growth, freezing and thawing, abrasion, animal activity
The grinding away of rock by rock particles carried by water, ice, wind, or gravity abrasion
Rock is broken down through chemical changes chemical weathering
5 agents of chemical weathering water, oxygen, carbon dioxide, living organisms, acid rain
Most important cause of chemical weathering water
Causes iron to rust oxygen
The process by which oxygen weathers rock oxidation
Forms carbonic acid carbon dioxide
Pollution can change water into this acid rain
These living organisms have a mild acid in their roots that eats away rock lichens
Most important factors that affect the rate of weathering type of rock, and climate
Created by: judi829
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