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www.reference.com/article/great-barrier-reef-1ad0ea88eb8e21fb

The Great Barrier Reef rests in the Coral Sea off the coast of Queensland, Australia. Roughly the size of Germany, Italy, Japan and Malaysia, the expansive reef stretches at least 1,400 miles and contains more than 900 islands.

www.reference.com/article/long-great-barrier-reef-9553d9443ad0792f

The Great Barrier Reef is 1,429 miles long and runs along the coast of northeastern Australia. The Great Barrier Reef Marine Park covers about 132,819 square miles and contains about 3,000 separate coral reefs.

www.reference.com/article/great-barrier-reef-formed-fea7fcde2ef08dba

The Great Barrier Reef formed from a long and slow process involving the accumulation of organic materials, such as stone, plants and animals and shells of dead corals. The Great Barrier Reef started forming approximately 20 million years ago. Dead shells from coral, al...

www.reference.com/article/great-barrier-reef-important-1ec359970c30ed36

The Great Barrier Reef is important for many reasons. It protects coastlines from the damaging effects of tropical storms and waves, assists in carbon and nitrogen fixing, helps with nutrient recycling, and provides a habitat for a variety of marine organisms, according...

www.reference.com/article/natural-barrier-7a4775fe9cf265

In geography, a natural barrier is a naturally occurring obstruction that prevents or slows down movement, especially of people and forces of nature at technological levels. Sand dunes, reefs, mountain ranges, ice fields and barrier islands are considered natural barrie...

www.reference.com/article/coral-reefs-form-4a551c1559c9bd9f

Coral reefs start to form when coral larvae attach to rocks or hard surfaces that are submerged under water. Coral polyps secrete calcium carbonate, closing off each layer as they grow bigger. Each polyp bonds itself to other polyps, eventually forming reef structures.

www.reference.com/article/coral-reefs-made-c4731a8b4e927932

According to the National Oceanic and Atmospheric Administration, coral reefs are formed when coral larvae attach themselves to rocks or other hard surfaces found under water along the edges of islands and along coasts. Additionally, plants may also accumulate within th...