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| Term | Definition |
|---|---|
| Weathering | the natural process by which atmospheric and environmental agents, such as wind, rain, and temperature changes, disintegrate and decompose rocks |
| Mechanical weathering | the process by which rocks break down into smaller pieces by physical means |
| Abrasion | the grinding and wearing away of rock surfaces through the mechanical action of other rock or sand particles |
| chemical weathering | the process by which rocks break down as a result of chemical reactions |
| acid precipitation | rain, sleet, or snow that contains a high concentration of acids |
| Differential weathering | |
| soil | |
| parent rock | |
| Bedrock | |
| Soil texture | |
| Soil structure | |
| humus | |
| Soil conservation | |
| Erosion |