Across
- 3. Factory that releases dirty water
- 4. Large areas of land that filter and clean water naturally
- 5. Pipes that carry wastewater to treatment plants
- 7. Dead zone in water caused by pollution
- 8. When too much fertilizer causes algae to grow rapidly
- 10. Water underground in soil and rock layers
- 11. The process of turning salt water into fresh water
- 12. Leaking liquid from landfills that contaminates groundwater
- 15. Plastic bags and bottles that harm marine lif
- 16. Harmful substances that pollute water
Down
- 1. fuels Fuel burned by cars and factories that pollutes air and water
- 2. The practice of using less water
- 3. Acid rain caused by air ___
- 6. The water cycle process where water turns to vapor
- 9. The process of cleaning dirty water
- 13. Trash and waste that ends up in oceans
- 14. Chemicals used on farms that run into waterways