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| The chemical and physical process that breaks down rock at Earth's surface. |
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| The process by which water, wind, or gravity moves weathered rock or soil. |
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| The type of weathering in which rock is physically broken into smaller pieces. |
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| The gringing away of rock by other rock particles carried in water, ice, or wind. |
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| The process that breaks down rock through chemical changes. |
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| A chemical change in which a substance combines with oxygen, as when iron oxidizes, forming crust. |
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| Characteristic of a meterial that is full of tiny, connected air spaces that water can seep through. |
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| The geologic principle that the same geologic process that was operated today operated the past to change Earth's surface. |
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| Process that spilts rock when water seeps into cracks, then freezes and expands. |
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