CORAL REEFS Crossword

the wearing away of something by wind, rain or other natural agents
visits to places of interest
a ring-shaped coral island around a lagoon
a person who acts for the protection and preservation of the environment and wildlife
an imaginary line drawn around the earth equally distant from the north and south poles
a community of animals or plants of one kind or another living close together
animal organisms or creatures drifting in oceans, seas and fresh water
seriously at risk of extinction
a small area of raised earth or sand
forming a border or a loose barrier
withstanding the action of e.g., stopping large waves
people, plants or animals that live in a particular place
a distinct group of animals or plants
the removal of areas of forest
an animal shaped like a tube with a mouth and tentacles at one end
an area of shallow and calm water separated from the sea by a bank or reef
an obstacle e.g., a sand bar or reef that stops or slows down waves
not lucky; likely to have undesirable results