Ocean Ecosystem, Great Barrier Is the Biggest
This page is the CodyCross answer for the clue below from The 80s, Group 781, Puzzle 4 (Acid Wash Jeans).
Question is: Ocean Ecosystem, Great Barrier Is the Biggest
and the answer is: CORALREEF
Word Meaning:
CORAL REEF — A reef formed by compacted coral skeletons
Definitions from Wiktionary.