0ceans and Coasts

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Across
  1. 5. the name of the animal that makes up coral reefs
  2. 6. deepest point in the ocean
  3. 10. protection of the coastline against erosion
  4. 11. the narrow stretch between the land and the sea
  5. 13. the zone in the ocean where sunlight can no longer reach
  6. 16. this type of wave helps to build up a beach
  7. 17. the smallest ocean
  8. 18. the country that catches the most fish
  9. 19. shallowest zone in the ocean
Down
  1. 1. water flowing upwards on a beach after the wave breaks
  2. 2. wasteful type of fishing that hauls in massive fish which are then discarded
  3. 3. the movement of water down a beach after the wave has broken
  4. 4. the catching and killing of whales, to harvest their meat, blubber and oil for use in products
  5. 7. the wearing away of rocks and sediment along the coastline
  6. 8. this is the changing of weather patterns which is causing the ocean to warm and rise
  7. 9. these types of wave remove material from the beach
  8. 12. the largest ocean
  9. 14. this describes where there is a large cluster of coral reefs
  10. 15. when too many fish are caught, meaning the breeding population is not large enough to recover