Ghost Nets

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Across
  1. 4. attributed to some force beyond scientific understanding or the laws of nature.
  2. 7. make (something) visible by uncovering it.
  3. 8. a system for the detection of objects under water by emitting sound pulses and detecting or measuring their return after being reflected.
Down
  1. 1. the state or quality of being dedicated to a cause, activity, etc
  2. 2. publicly recommend or support.
  3. 3. you can get your money back if you are not satisfied with it or if you are unable to use it.
  4. 4. able to be maintained at a certain rate or level.
  5. 5. a thing that is composed of two or more separate elements; a mixture.
  6. 6. a time of intense difficulty or danger.