Q. Which of the following coral reefs is horse shoe shaped reef that encircles a lagoon but not an island?

 2563  192 Animal Kingdom Report Error

Solution:

An atoll reef is also called coral island or lagoon island which is circular or horse shoe shaped reef that encircles a lagoon but not an island. It may be complete or broken by a number of channels.
e.g. - Lakshdweep and Maldive islands in Indian Ocean.