| A | B |
|---|
| Surface Water | water found on the surface of the Earth |
| Transpiration | Water vapor given off by plant photosynthesis. |
| Water Cycle | the continuous movement of water from the ocean to the atmosphere to the land and back to the ocean. |
| Aquifer | An underground layer of rock or soil that holds water. |
| Reservoir | A lake that stores water to a river system |
| Nitrate | nitrogen compound that can be used by photosynthetic life forms to obtain the nitrogen needed for survival. |
| pH | the measure of how acidic or basic a substance the acidity nuetrality or basicity of a substance. |
| Turbidity | a measure of the clarity of the water |
| Water Quality | used to describe the health of a water system |
| Wastewater | water that runs into drains that may contain sewage and chemicals from homes and businesses or pollutants from industry |
| River Basin | the region of land drained by a river system |
| Watershed | the land area that supplies water to a river system |
