Water Quality

2. a natural mineral containing chemical compounds including Phosphorus, often used in fertilizers
6. Environmental Protection Agency- gov't agency in charge of water quality standards.
8. an organism without a backbone that can be seen without a microscope.
10. A process by which nutrients, particularly phosphorus and nitrogen, become highly concentrated in a body of water, leading to increased growth of organisms such as algae or cyanobacteria.
12. Measurement system used to indicate acids and bases; runs from 0-14, with small numbers being acids and larger numbers being bases.
13. an immediate increase in the amount of algae and other producers that results from a large input of nitrates and phosphates
14. nitrogen compounds used for growth by plants and algae
15. A measure of how clear the water is.

1. The amount of oxygen gas bubbles that is found in water and is available to aquatic organisms. Cool water holds more and warm water holds less.
3. an immediate increase in the amount of algae and other producers that results from a large input of nitrates and phosphates
4. organisms that are used to monitor the health of an ecosystem. Some only survive under certain conditions.
5. A way of supplying water to an area of land, often used in agriculture
7. the chemical, biological, and physical status of a body of water
9. A chemical intended to kill insects and other organisms that damage crops.
11. The degree or intensity of heat present in a substance.