What are atolls?
avatarAsked on December 27, 2019 by Nandha Kotwani

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


  • 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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