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Mechanical (physical) weathering is the breakdown of rock into smaller particles due to such factors as freezing and thawing, release of pressure, water absorption, salt crystal formation, landmass uplift, expansion and contraction from the sun or fire, plant root growth, actions of animals, abrasion, or other means that do not directly affect the rock's chemistry.

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14y ago
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10y ago

Mechanical weathering is the breaking down of rocks into smaller pieces without any change in their chemical composition.

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14y ago

Mechanical Weathering is the breaking apart of rocks without changing their chemical composition

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Q: What is mechanical weathering in geology?
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