Across
- 3. which of the four types of pollution is a living organism
- 5. the bottom of the lake
- 9. plant-like organisms, algae
- 12. the most diverse of all the aquatic ecosystems
- 15. separates surface water from ground water
- 17. paint and other chemicals are which of the four types of pollution
- 20. marshes and swamps are examples of which fresh water biome
- 21. seeps through spaces in soil
- 23. which of the four types of pollution include nitrogen and phosphorous
- 25. salt water biome that is submerged during high tide and exposed during low tide
- 26. from a wide-variety, run-off or infiltration
Down
- 1. the amount of dissolved salt in the water
- 2. the cloudiness of water
- 4. most water is used for
- 6. created to establish rules and regulations for what can be discharged into surface waters
- 7. the saltwater ecosystem with a complex root system that filters out salt
- 8. flows downhill to a stream or river, then to a lake or ocean
- 10. animal-like organisms,protozoa
- 11. bodies of water where seawater mixes with freshwater
- 13. free-floaters
- 14. lakes with high amounts of nutrients, greenish tint
- 16. strong swimmers and consumers
- 18. single source, identifiable
- 19. which of the four types of pollution comes from soil
- 22. water that is a mixture of fresh and saltwater
- 24. lakes with little to no nutrients, clear