Across
- 1. The variety of living organisms in an ecosystem.
- 3. A place where freshwater meets saltwater.
- 6. A strip of vegetation that filters nutrients and sediment before they reach streams.
- 7. An organism that filters water and improves water quality.
- 8. The area of land that drains into a common river or body of water.
- 11. Aquatic organisms that grow rapidly when nutrients are abundant.
Down
- 2. A collection of living and non-living components that interact in the same area.
- 4. Water that flows over land and carries pollutants into waterways.
- 5. A process in which excess nutrients cause algae growth and oxygen depletion.
- 9. A condition of low dissolved oxygen in the water.
- 10. A structure that provides habitat for oysters and other aquatic organisms.