Across
- 5. dirty or harmful substances in the environment
- 6. agency of the US government that is responsible for protecting the environment
- 7. yellow-brown haze when sunlight reacts with air pollution
- 9. a place where wastes are dumped and buried
- 10. rain that is more acidic than normal rain from chemicals off of fossil fuels
- 11. oil, coal, and natural gas used to provide energy
- 12. human waste, garbage detergents, and other household wastes washed down drains and toilets
Down
- 1. reducing waste before it occurs
- 2. easily broken down in the environment
- 3. saving of resources
- 4. wastes that may endanger human health or the environment
- 8. water below the earth's surface