Social Networks How do they work&

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Across
  1. 2. a description of somebody/something that gives useful information
  2. 6. easy to do or to understand; not complicated
  3. 7. something that connects two facts, ideas, etc.
Down
  1. 1. the act of communicating with somebody, especially regularly
  2. 2. to mark something in some way to show that it belongs to a particular person
  3. 3. the official system used for sending and delivering letters, packages, etc.
  4. 4. to communicate with somebody, especially while you work, play or spend time with them
  5. 5. the act of looking at a lot of things in a shop rather than looking for one particular thing