| A | B |
|---|
| Weathering | the breaking down of rocks and other materials at the earths surface |
| Erosion | the process by which the products of weathering are moved from one place to another. |
| Abrasion | the wearing away of a substance by solid particles carried by wind, water or other forces. |
| root-pry | the breaking apart of rocks caused by the growth of plant roots. |
| frost action | the breaking apart of a rock caused by the water freezing and expanding within cracks. |
| landslide | -a large downhill movement of loose rocks and soil caused be the pull of gravity. |
| oxidation | the process in which oxygen chemically combines with another substance. |
| Deposition | the process by which sediments are laid down in new locations. |
| Loess | accumulations of fine particles of sand and silt deposited by the wind. |
| mass waisting | the downhill movement of sediments due to gravity. |
