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Garden of Eden
Build an Atoll
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Build an Atoll (7)

But as long as the coral continues to grow, the atoll remains. The original island will continue to sink and can do so for many millions of years.

Over tens of million of years an island can sink several thousand feet below sea level.

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Seychelles Through Time | Saving the Magpie Robin
Why Do Islands Breed Giants? | Build an Island
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