| A | B |
|---|
| Surface water | Water that is above ground in lakes, ponds, rivers, and streams. |
| Watershed | A entire area of land that is drained by a river. |
| 70 percent of the earth is covered with | Water |
| Groundwater | Water that seeps down in this way and is stored underground. |
| Aquifers | large amounts of groundwater may be stored in undgerground rock formations called. |
| Recharge Zone | The area of land from which the groundwater originates is called. |
| Desalinization | Removing the salt from water is called |
| Water Pollution | The introduction of chemical, physical, or biological material into water. |
| Point Pollution | Pollution that is discharged from a single source, and can be traced directly back to the source. |
| Nonpoint Pollution | Pollution that comes from many sources rather than from a single sorce. |
| Artificial Eutrophication | The excess amount of algee grouth that kills all aqutic life |
| Thermal Pollution | When excessive amounts of heat are added to a body of water. |
| Bioaccummulation | The process of increasing the amount of chemicals through digestion |
