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Across
  1. 1. the process of water or soil becoming acidic
  2. 4. federal law that regulates air emissions
  3. 6. loss of electrons, usually involving oxygen
  4. 8. acid rain breaks down this and marble
  5. 11. colorless, pungent toxic gas mainly released by burning fuel
  6. 12. chemical or substance that has adverse effects and contaminates resources
Down
  1. 2. accelerated deterioration of materials derived from acid rain
  2. 3. Any form of precipitation with high levels of sulfuric and nitric acids
  3. 5. highly reactive gases formed during combustion
  4. 7. air pollution control device that removed hazardous acidic gases
  5. 9. regulations designed to improve avg fuel mileage
  6. 10. part of water cycle where water returns to ground