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What are atolls?
They are rectangular coral reefs
They are circular or horse-shoe shaped coral reefs
These are triangular coral reefs
None of the above

A

These are triangular coral reefs

B

They are rectangular coral reefs

C

None of the above

D

They are circular or horse-shoe shaped coral reefs

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Solution

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Atoll which is also called as coral atoll is a ring shaped reef including rim which is present around a lagoon. These can be either circular or horse shoe shaped.
Most of the world’s atolls are located in Pacific Ocean. The Saya de Malha Bank is the largest atoll that is present in western Indian Ocean.

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