erosion

2. A drainage basin is any area of land where precipitation collects and drains off into a common outlet, such as into a river, bay, or other body of water.
7. a crack in the ground made by ice
8. a deep gorge, that usually has a river running through
9. process of scraping or wearing something away.
11. the soil lying immediately under the surface soil.

1. process by which soil, sand, regolith, and rock move downslope
3. the process or result of oxidizing or being oxidized.
4. sand, clay, or other material carried by running water and deposited as a sediment, especially in a channel or harbor.
5. a grained up rock, that is made when waves hit against them
6. the chemical breakdown of a compound due to reaction with water.
10. water held underground in the soil or in pores and crevices in rock.