Great Barrier Reef

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Across
  1. 4. protecting nature and wildlife
  2. 5. the variety of living things in one place
  3. 8. easily damaged or broken
  4. 9. a ridge of coral, rock or sand beneath the sea
Down
  1. 1. connected with the sea
  2. 2. a group of similar living things
  3. 3. the natural home of a plant or animal
  4. 4. tiny marine animals that build reefs
  5. 6. living things and the environment where they live
  6. 7. the usual weather conditions of a place over many years