| A | B |
|---|
| delta | a fan shaped region formed by sediments dropped at the mouth of a river |
| deposition | the dropping of weathered rock and soil |
| erosion | the movement of weathered rock and soil |
| glacier | a large mass of snow and ice that moves downward and outward over the land |
| levee | an embankment built along a river to keep the river from overflowing |
| weathering | the breaking down of rocks into smaller pieces |
