Environmental Science: Air Quality and Weather

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Across
  1. 1. Condition or state of the air
  2. 3. Hottest layer of the atmosphere
  3. 6. Nature's living air purifier
  4. 8. Type of candles with no soot
  5. 10. Blue Line with triangles
  6. 12. Clean and scrub the air
  7. 13. Best way to let in fresh air
  8. 14. Chemicals from new furniture
  9. 15. First Layer of the atmosphere
  10. 16. Hair and skin from house animals
Down
  1. 2. Something to stop tracking dirt from outside
  2. 4. Red line with half circles
  3. 5. Line with half circles and triangles
  4. 7. Outer layer of the atmosphere
  5. 9. Layer of the atmosphere with natural Ozone
  6. 11. Middle layer of the atmosphere