Across
- 4. a virus, microorganism, or other substance that causes disease
- 7. The process of cutting down or burning a forest
- 9. A type of rain that is caused by air pollution
- 11. ____ layer has been destroyed by CFCs
- 12. Air pollution can cause lung ____
- 13. The release of a substance/gas into the atmosphere
Down
- 1. any substance or form of energy that can cause harm to the environment and make it unfit for use by organisms
- 2. Methane, CO2, Hydrogen, and Fluorine are what type of gases
- 3. This clear material can be recycled multiple times
- 5. water that runs into drains that may contain sewage and chemicals from homes and businesses or pollutants from industries
- 6. Increasing population to unsustainable levels
- 8. Extracting oil from underground
- 10. Temperatures have been rising since which revolution?