Down in the depths

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Across
  1. 2. - Clear enough to see through.
  2. 5. - The absence of light.
  3. 6. - Natural light from the sun.
  4. 8. - To swim down under water.
  5. 9. - An animal that lives in water and has gills.
  6. 11. - The force of water or air pushing on something.
  7. 13. - The top part of the sea or another area.
  8. 14. - A very large sea mammal.
Down
  1. 1. - A group of animals or plants of the same kind.
  2. 3. - The weak light between day and night.
  3. 4. - The deep parts of the sea.
  4. 7. jelly - A sea animal that is almost impossible to see.
  5. 10. - The air you take into your lungs.
  6. 12. - A sea animal with tentacles and a soft body.