Answer:
Coral
polyps are short lived microscopic organisms which lives in colonies. They
flourish in shallow, mud free and warm waters. They secrete calcium carbonate.
The coral secretion and their skeleton form coral deposits in form of reefs.
They are mainly of three kinds
(i) Barrier reef (ii) Fringing reef (iii) Atolls The
Great Barrier Reef of Australia is a perfect example of the first kind of coral
reefs. Atolls are circular or horse shoe shaped coral reefs. In India,
Lakshadweep island is of coral origin. It covers small area of 32 square km.
Kavaratti island is the administrative head quarters of Lakshadweep. This
island group has great diversity of flora and fauna. The Pitti island which is
uninhabited has a bird sanctuary.
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