| A | B |
|---|
| erosion | process where products of weathering are moved from one place to another |
| deposition | process by which sediments are laid down in a new location |
| sand dune | mound of sand depositied by the wind |
| tributary | large stream or small river that flows into an area's main river |
| drainage basin | area drained by a major river |
| immature river | river in an early stage of development, fast with rapids |
| mature river | river that has been developing for thousands of years, slower and winding |
| meander | a loop in a river |
| oxbow lake | U-shaped lake formed when erosion and deposition cut off a meander of a river |
| alluvial fan | fan-shaped deposits of sediments formed a the place where a river flows out of a mountain and onto a plain |
| delta | triangular shape of sediments deposited at the mouth of a large river that flows into the ocean |
| flood plain | flat area that is found on both sides of a river made when sediments are deposited after flooding |
| levee | in nature, a ridgelike deposit along the sides of the river |
| glacier | large mass of moving ice and snow |
| sand bar | long, underwater ridge of sand |
| spit | sandbar connected to the shoreline |
