Vocabulary review

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Across
  1. 3. Indicates posible danger or problem that can be prevent
  2. 5. Sever storm caused by snow and winds
  3. 8. Giant blocks of ice located in the ocean
  4. 10. created by technology and appearing to exist but in physical world it doesnt exist
  5. 11. to develop or improve something
  6. 12. Single drops of rain
  7. 16. Gradual destruction of something
  8. 19. Prevention of things
  9. 20. a device that is used to record something in  present and detects changes usually it is used for security
Down
  1. 1. a group of people that work together in an order way for a similar purpose
  2. 2. electronic machine
  3. 4. A group of islands
  4. 6. an area on the edge of a large town or city where people who work in the town ir city
  5. 7. Natural home or enviorment when living and non living things socialize
  6. 9. the world or the state as of things as they actually exist
  7. 13. to make draw or plans for creating something, like buildings clothes furniture
  8. 14. Disturbance or turbulence that can be caused by snow or rain
  9. 15. When water of a place overflows
  10. 17. a place or position
  11. 18. the study and knowledge of scientific inventions such as computers