Across
- 2. In urban areas what system is used to clean the water
- 3. The major souce of oil in the ocean is from
- 7. Used to manufacture plastics
- 10. Largest tanker oil spill
- 11. What decides whether pathogens are present in the water?
- 12. What sets the standards for our drinking water
- 13. Amount of oxygen that a certain amount of water uses
- 14. The last step in the septic system where the water travels to underground pipes
- 17. Human and animal waste in water
- 19. When burning coal what is the main compound that releases?
- 21. When water flows through a farm that brings pesticides and nutrients into the water, what source is that called?
- 22. Causing a substantial change in temperature of water
- 23. What compound naturally dissolves into groundwater
- 24. Large quantities of animal waste on farms is held here
- 25. A result in excess nutrients in a body of water due to anthropogenic inputs
Down
- 1. Name the three ways to clean-up oil
- 4. One harmful effect of sediment pollution
- 5. What caused the eggshells of some birds to become thin and break?
- 6. An area in water with little to no oxygen
- 8. Human activities that harm the water quality
- 9. What is the middle and cleaner section of a septic system called
- 15. Established by the EPA under the Safe Drinking Water Act
- 16. What sinks to the bottom of the septic tanks?
- 18. What law focuses on surface water
- 20. Type of noise pollution