science water quality

2. pollution that occurs from unidentifiable sources
7. taking care of something
8. single, identifiable sources of pollution (In the case of water pollution, examples of point source pollutants might include a pipe, factory releasing pollutants into the water, etc.)
9. A measure of the acidity or basicity of a substance; measured on a scale from 1-14 with the lower numbers representing the highest acidity
12. the action or process of a liquid changing to a solid or semi-solid state
15. excessive nutrients (usually nitrates and phosphates from run-off) in a lake or other body of water, which causes a dense growth of plant life and death of animal life from lack of oxygen
16. any of various mechanical, physical or biological operations that separate solids from fluids (liquids or gases) by adding a medium through which only the fluid can pass
17. groundwater contaminant that oftentimes enters the groundwater through fertilizers, animal wastes, and sewage

1. the degree or intensity of heat present in a substance
3. how clear or cloudy water is; water with a high turbidity is more difficult to see through
4. inorganic compound created by the removal or replacement of one, two, or all three hydrogen atoms in phosphoric acid; used in fertilizers and detergents and is a major cause of water pollution
5. oxygen found in water; the higher the amount of dissolved oxygen, the healthier a water system is for organisms
6. Organisms that indicate the health of a water ecosystem
10. creating favorable conditions in water so that particles will stick together
11. the process of cleaning something, especially with a chemical, in order to destroy bacteria
13. bloom a rapid increase in phytoplankton as a result of excess nutrients in the water/can serve as a bioindicator of water quality
14. the process of settling or being deposited as a sediment