Which of the following islands are made of small coral atolls and reef

Which of the following islands are made of small coral atolls and reefs in the Arabian Sea ?

Maldives
Andaman
Sri Lanka
Lakshadweep
This question was previously asked in
UPSC CAPF – 2014
The question asks for islands made of small coral atolls and reefs located in the Arabian Sea.
– Maldives: An island nation consisting of numerous coral atolls. Geographically, it is located south of the Lakshadweep islands in the Indian Ocean, bordering the Arabian Sea to the north. While a coral archipelago, its primary location is often described as the North Central Indian Ocean or Laccadive Sea.
– Andaman: The Andaman Islands are part of the Andaman and Nicobar Islands archipelago, located in the Bay of Bengal. They are primarily volcanic in origin.
– Sri Lanka: A large island located southeast of India in the Indian Ocean. It is a continental island.
– Lakshadweep: An archipelago located in the Arabian Sea off the southwestern coast of India. Lakshadweep is composed of 36 islands, islets, and submerged reefs, most of which are coral atolls.
Lakshadweep perfectly fits the description of islands made of small coral atolls and reefs in the Arabian Sea.
Identify the location and geological formation type of major island groups in and around India. Lakshadweep is a coral archipelago in the Arabian Sea, while Andaman and Nicobar are primarily volcanic in the Bay of Bengal.
Coral atolls are ring-shaped coral reefs that enclose a lagoon, often formed around a submerged volcanic island. They are found in warm tropical and subtropical waters. Lakshadweep is an excellent example of an Indian coral archipelago.
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