People and the ocean

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Across
  1. 2. long walkway built above the ocean like a bridge
  2. 4. a small pool of seawater that is on the land
  3. 6. something that is in the environment that is harmful
  4. 8. star shaped animal that lives in the ocean
  5. 9. big body of water
Down
  1. 1. a boat used for fishing
  2. 3. they have an impact on the ocean
  3. 5. a large structure that pulls oil from underground
  4. 7. land by ocean that has sand, stones or pebbles