People and the Planet

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Across
  1. 1. the feeling that something must happen right now
  2. 3. about to happen
  3. 6. something that has never happened before
  4. 8. something that is pushed out or put into the air
  5. 10. convinces because of
  6. 11. something that seems real, but isn't
  7. 13. process of a species dying out
Down
  1. 2. done with the least effort
  2. 4. having no care or caution
  3. 5. can't continue or be kept up
  4. 7. an emotionally stressful or dangerous event
  5. 9. the process of contamination
  6. 12. to stay alive or in existence