technology cates p4 era 4

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Across
  1. 1. handheld devices that allow easy communication between civilians
  2. 4. refined fossil fuel
  3. 7. 5d and helicopters, for example
  4. 9. population stats
  5. 11. broadcasting device, mostly used in homes
  6. 15. energy generator (2 words)
  7. 17. used to make operations less painful
  8. 18. destructive weapons used only twice ever (2 words)
  9. 19. explosive dropped from above
Down
  1. 2. bacteria killer
  2. 3. digital attacks
  3. 5. flying vehicle used for transportation
  4. 6. medicine to guard against diseases before they occur
  5. 8. broadcasting device, commonly used in cars
  6. 10. an event that reduced hunger (2 words)
  7. 12. required for a connection
  8. 13. 11a & 8d, for example (2 words)
  9. 14. invention that uses the sun for electricity (2 words)
  10. 16. crude oil