grain - creature - nutrient - lagoon - atoll - reserve


1- any large or small living thing :

2- an area of sea water separated from the sea by a reef :

3- a very small piece of a hard substance :

4- an area of land kept in its natural state :

5- any substance that plants/animals need in order to live and grow :

6- a ring-shaped island formed of coral that surrounds a lagoon :