| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | erosion | Earth science community | Erosion is a natural process that wears down rocks and landforms over time | 1 |
| 2 | erosion | earth science | Gradual process of wearing away of the Earth's surface by wind, water, and other natural forces | 1 |
| 3 | soil erosion | soil science | Natural process caused by wind, water, or human activities | 1 |