Saving a Coral Reef

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Across
  1. 5. a biological community of interacting organisms and their physical environment.
  2. 7. a nature reserve.
  3. 8. a way of carrying out a particular task
  4. 9. a person who catches fish for a living or for sport.
Down
  1. 1. certain to happen
  2. 2. negative and unhelpful.
  3. 3. operation of holidays and visits to places of interest.
  4. 4. relating to the environments of living things or to the relationships between living things and their environments
  5. 6. is a person who is studying or has expert knowledge of one or more of the natural or physical sciences.