Hunter White Chemistry Crossword 2

123456789101112
Across
  1. 4. If something is below a seven on the PH scale it is this.
  2. 5. This type of UV ray is the only one that is harmless to humans.
  3. 7. Each number down on the PH scale represents a __ times increase in acidity.
  4. 8. This form of pollutant is released into the air directly in the form that is the pollutant.
  5. 9. This word is a combination of smoke and fog.
  6. 10. Infrared rays break apart chemicals by making them do this.
  7. 12. How many different categories are there of air pollution?
Down
  1. 1. Where does carbon last the longest?
  2. 2. The ozone layer resides in this layer of the earth's atmosphere.
  3. 3. The IPCC puts together a climate report every _____ years.
  4. 6. NO is this colour.
  5. 11. This is the index that is used for measuring the quality of air.