Correction for the size of The Great Barrier Reef
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How big is 1.380 circular mils?
It's about 0.000000000000000000002 times as big as The Great Barrier Reef
The size of The Great Barrier Reef is about 687,000,000,000,000,000,000.000000000000000000000000 circular mils.
(a.k.a. Barrier Reef) (Coral Sea, off Queensland, Australia) (approximate)
The Great Barrier Reef, the largest such reef in the world, covers about 687,000,000,000,000,000,000.000000000000000000000000 circular mils. Reefs, such as the Great Barrier, grow in diameter at a rate of 1 to 3 cm per year.