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Weathering
Stack #206863
| Question | Answer |
|---|---|
| weathering | chemical or physical breakdown of rocks; changes any type of rock to sediments |
| chemical weathering | breakdown of rock through a change in mineral or chemical composition (ex. oxidation) |
| physical weathering | the breakdown of rock into smaller pieces without chemical change (ex. abrasion) |
| exfoliation | rock breaks off in layers |
| frost wedging | freeze/thaw cycle breaks rock |
| root wedging | root grows in rock crack and splits rock open |
| climate | most important factor for weathering; type of weather in an area |
| rock type and climate | two main FACTORS of weathering |
| physical and chemical | two TYPES of weathering |
| rock type | metamorphic, igneous, or sedimentary; sedimentary rocks tend to weather faster |