The Great Barrier Reef is…

The Great Barrier Reef is…

A The world’s largest living structure
B Visible from outer space
C Both are true

The Great Barrier Reef extends for about 1,430 miles and is Earth’s single biggest structure made by living organisms. It is made up of billions of tiny creatures known as coral polyps. It is also the biggest living structure visible from space.

The correct answer is Both are true.

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