chapter 7

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Across
  1. 2. a danger or risk
  2. 4. the condition of being protected from or unlikely to cause danger, risk or injury.
  3. 9. the removal or clearance of a person or place
  4. 10. instruction or training
  5. 11. the study of people's efficiency in their work environment
  6. 12. having a tendency to react chemically
  7. 13. a substance that causes slight inflammation or other discomfort to the body
  8. 14. containing or being poisonous material especially when capable or causing serious injury or death
  9. 15. ability to oxidize other substances
  10. 17. to cease fire or burning
  11. 18. induction of permanent transmissible changes in the amount or structure of the genetic material of cells or organisms
  12. 19. easily set on fire
Down
  1. 1. a highly reactive substance that causes obvious damage to living tissue
  2. 3. the act of sending or receiving information
  3. 5. able or likely to shatter violently or burst apart
  4. 6. any psychoactive compound with numbing or paralyzing properties
  5. 7. a substance able to cause cancer in living tissue
  6. 8. a combustion or burning in which substances combine chemically with oxygen from the air
  7. 16. biological substance that poses a threat to living organisms