Song of humpback

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Across
  1. 1. exchange information or ideas with people or machines
  2. 3. act of coming closer in space or time
  3. 6. swim underwater and breathe using a snorkel
  4. 10. seemingly true based on available information
Down
  1. 2. participate in or undergo
  2. 4. made up of multiple parts, not simple
  3. 5. in a manner showing interest
  4. 7. capture audio or video
  5. 8. knowing what is happening or having information
  6. 9. not known, recognized, or discovered by people