Across
- 3. energy that is not depleted
- 5. used for nonrenewable dangerous energy
- 8. produced in photochemical smog
- 10. geologic source of CO2 in the atmosphere
- 12. government policy to help air pollution
- 13. how carbon gets stored long-term
- 14. helps with indoor pollution
Down
- 1. breakdown of organic matter
- 2. organic carbon based energy
- 4. comes from excess fertilizer
- 6. natural gas pollutant
- 7. carbon based nonrenewable energy
- 9. year long project
- 11. caused by coal pollutants