| A | B |
|---|
| divide | A ridge or land that separates one drainage basin or watershed from another. |
| drainage basin | The land area from which a river and its tributaries collect their water. |
| gully | A large channel in soil formed by erosion. |
| hazardous waste | A material that can be harmful if it is not properly disposed of. |
| incineration | The burning of solid waste. |
| leachate | Water that has passed through buried wastes in a landfill. |
| mass movement | Any one of several processes by which gravity moves sediment downhill. |
| municipal solid waste | Waste produced in homes businesses, and schools. |
| recycling | The process of reclaiming and rusing raw materials. |
| rill | A tiny groove in soil made by flowing water. |
| river | A large stream. |
| runoff | Water that flows over the ground surface rather than soaking into the ground. |
| sanitary landfill | A landfill that holds nonhazardous waste such as muncipal soild waste and construction debris. |
| stream | A channel through which water is continually flowing downhill. |
| tributary | A stream that flows into a larger stream. |
