The Great Barrier Reef

1. The Great Barrier Reef is considered the "largest reef system on earth".
2. What compound does coral extract from the ocean to make solid tentacles?
     -The coral extracts Calcium Carbonate from the ocean.
3. How does red algae impact the stucture of a coral?
     - The red algae is what is used to make the coral.
4. What year did the Great Barrier Reef become a national park?
     - The Great Barrier Reef was named a national park in 1975.
5. What percentage of the reef is protected from fishing?
     - Around 33 percent of the reef is protected from any kind of fishing.
6. How old do scientists believe the CURRENT reef is? The ANCIENT reef?
     - The  current reef is estimated to be around 20,000 years old and the ancient reef is estimated as old as 500,00 years old.