| A | B |
|---|
| watershed | land area that drains into a lake or stream |
| wetlands | land that has a soggy soil such as a marsh or swamp |
| freshwater | water that contains no salt |
| groundwater | water found beneath the surface |
| hydrological cycle | water cycle moving from the ground to groundwater to oceans to clouds to the ground again |
| acquifer | underground formation which stores water |
| discharge | addition of pollutants including animal manure or contanimated water |
| salinization | when salt is added to soil |
| non-point source | unlimited discharge of water to a receiving body of water |
| point source | limited discharge of water such as a channel, pipe, or ditch |
| permeable | ease with which water can flow through land or landfill liners |
| porous | amount of space between rocks, marbles through which fluids can flow |
