Across
- 4. underground pipes laid out below the ground
- 6. legislation that supports the protection and propagation of fish, shellfish, and wildlife in and on water by maintaining and restoring surface waters when necessary
- 10. Largest tanker oil spill that occurred in Alaska
- 11. where most ocean trash enters the ocean
- 13. a sewer system someone who lives on a farm might have
- 15. legislation passed that sets a national standard for our clean drinking water.
- 16. the solid waste material found in wastewater
- 17. Metal found in pipes that is known to contaminate water
- 18. outdoor basin filled with animal waste
- 21. produced from sewage and gray water (laundry, bathing, and dishes)
- 23. can hurt whales and may cause them to beach themselves
- 24. chemicals used to kill pests like mice and rats
Down
- 1. found in waterways making them cloudy and brown, ultimately reducing the infiltration of sunlight.
- 2. natural occurring metal that is found in high concentrations in tuna
- 3. chemicals used to kill insects
- 5. area where raw sewage is dumped into bodies of water and extremely low oxygen levels occur
- 7. unwanted or discarded material we produce that is not a liquid or gas
- 8. the amount of oxygen consumed by bacteria and other microorganisms while they decompose organic matter
- 9. compound that dissolves in ground and drinking water
- 12. The majority of oil in the ocean comes from
- 14. when human activities cause a substantial change in water temperature
- 16. the most common source of coliform bacteria
- 19. the death of organisms due to a rapid change in temperature
- 20. chemicals used to kill weeds
- 22. human activity that pollutes the ocean through sound