| A | B |
|---|
| weathering | the breaking down of rock into smaller pieces |
| erosion | the process by which weathered rock is picked up and moved |
| deposition | the process by which eroded rock is dropped in a new place |
| canyon | a deep narrow valley with steep sides |
| delta | a flat, triangular shaped piece of land formed at the mouth of a river from deposited sediment |
| dune | a hill of sand deposited by wind |
| mountain | a landform that rises steeply from the land around it |
| valley | an area of low land that is found between mountains or hills |
| plain | a wide, flat area of land |
| geology | the study of Earth and its features |
