Global challenge

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Across
  1. 3. spreading in a liquid
  2. 5. devices to transmit informations
  3. 8. cable with glass
Down
  1. 1. the reason you have www
  2. 2. a fight in I.e. economics around the world
  3. 4. platform where you can communicate
  4. 6. bullying in the internet
  5. 7. people who can control your devices from around the world