Explanation: Coral islands are a unique type of island formed by the accumulation of coral debris and the growth of coral polyps. These islands are typically found in tropical and subtropical regions and are characterized by their low elevation and sandy beaches. The formation process of coral islands involves the growth of coral reefs, which over time build up layers of coral debris and sediment, eventually forming islands.
The Lakshadweep Islands, located in the Laccadive Sea off the coast of India, are a prime example of coral islands. They consist of a group of 36 coral atolls, islands, and islets, with a total land area of about 32 square kilometers. The islands are part of the Lakshadweep Archipelago, which is one of the smallest Union Territories of India. The islands are known for their pristine beaches, clear waters, and rich marine biodiversity.
The Andaman & Nicobar Islands, on the other hand, are not coral islands. They are a group of islands located in the Bay of Bengal and are primarily volcanic in origin. The islands are part of the Andaman Sea and are known for their diverse flora and fauna, including the Andamanese and Nicobarese tribes. The Andaman & Nicobar Islands are not formed by coral reefs, and thus they do not fit the criteria of being coral islands.
The Maldives, located in the Indian Ocean, are another example of coral islands. However, the question specifically asks for island groups that are also coral islands, and the correct answer is the Lakshadweep Islands. The Maldives, while being a separate group of coral islands, are not the answer to this specific question.
In summary, the Lakshadweep Islands are the correct answer as they are a group of coral islands formed by the accumulation of coral debris and the growth of coral polyps. Understanding the formation and characteristics of coral islands is crucial for comprehending the unique geographical features of these islands and their significance in the Indian Ocean.