Across
- 1. excessive riches of nutrients
- 3. regulating discharges of pollutants
- 4. substances that pollute something
- 6. contamination of water
- 8. sewage treatment plants
- 9. dissolved oxygen
- 10. measure of clarity of a liquid
Down
- 2. too many nutrients are added to a body of water
- 5. made up of fine particles
- 7. land run off