Explanation: Lakshadweep is an Indian Union Territory located in the Laccadive Sea, off the southwestern coast of India. It is a group of coral atolls and islands, making it distinct from other island groups in the region. The term "coral islands" refers to islands that are formed by the accumulation of coral reefs over time. These reefs are built by coral polyps, which are tiny marine animals that secrete calcium carbonate to form a hard skeleton. Over thousands of years, these skeletons accumulate and form the foundation of the islands.
Lakshadweep consists 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 world's largest coral reef systems. The islands are characterized by their white sandy beaches, clear lagoons, and rich marine biodiversity. The formation of these islands is a result of the geological process of coral reef growth and the subsequent accumulation of sediment.
In contrast, the Andaman and Nicobar Islands, which are also Union Territories of India, are not primarily coral islands. The Andaman Islands are a group of islands formed by volcanic activity and tectonic movements, while the Nicobar Islands are also formed by tectonic activity. These islands are part of the Andaman and Nicobar Islands Union Territory and are located in the Bay of Bengal.
Understanding the geological processes that form different types of islands is crucial for comprehending the unique characteristics of each island group. Coral islands like those in Lakshadweep are formed by the accumulation of coral reefs, while volcanic and tectonic islands like those in the Andaman and Nicobar Islands are formed by different geological processes. This distinction is important for students of geography and those preparing for competitive examinations that cover Indian geography and geology.