Gas Pollution

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Across
  1. 4. A global consequence of the greenhouse effect
  2. 5. The number of oxygen atoms in an ozone molecule.
  3. 7. A gas in vehicle emissions
  4. 11. A gas that breaks down ozone
  5. 13. A greenhouse gas
  6. 14. A reaction that produces greenhouse gases
  7. 15. A type of rain caused by sulfur dioxide emissions
  8. 16. Forms an atmospheric layer
Down
  1. 1. A natural source of carbon dioxide
  2. 2. A natural source of methane
  3. 3. The energy entering the atmosphere that warms the earth.
  4. 6. The energy source for the greenhouse effect
  5. 8. The radiation blocked by ozone
  6. 9. The radiation trapped by carbon dioxide
  7. 10. Emissions from a car
  8. 12. A protocol to reduce greenhouse emissions