Part of: Lakshadweep Gk set 3

Which island groups are also coral islands?

Category: Lakshadweep Gk

Hint: Consider the geological formation of the islands.

Correct Answer: A) Lakshadweep Islands.

Exam Relevance: UPSC, SSC, Bank PO, State PSC

Difficulty: Easy

Explanations:

Coral islands are a specific type of island formed by the accumulation of coral debris and the growth of coral reefs. These islands are typically found in tropical and subtropical regions and are characterized by their low elevation and sandy beaches. The process of coral island formation involves the growth of coral reefs, which are built by coral polyps. Over time, the accumulation of coral debris and the growth of the reef can create a structure that rises above the water level, forming an island.

The Lakshadweep Islands, located in the Laccadive Sea off the southwestern coast of India, are a prime example of coral islands. They are part of the Lakshadweep Archipelago, which consists of numerous small islands and atolls. The islands are formed by coral reefs and coral debris, making them a classic example of coral islands. The geological formation of these islands is a result of the growth of coral reefs over thousands of years, which have accumulated to form the landmasses that we see today.

It is important to note that not all islands in the Indian Ocean are coral islands. For example, the Andaman and Nicobar Islands, which are also part of India, are primarily volcanic and tectonic in origin. While they do have some coral formations, these are not the dominant feature of the islands. Similarly, the Maldives, which are also coral islands, are an independent country and not part of India.

Understanding the geological formation of islands is crucial for identifying the type of island and its characteristics. Coral islands, like the Lakshadweep Islands, are unique in their formation and are an important part of the Indian geographical landscape. They provide valuable insights into the processes of island formation and the role of coral reefs in creating landmasses.

Option Analysis:
  • Option A: This option is correct. The Lakshadweep Islands are indeed coral islands. They are located in the Laccadive Sea and are formed by coral reefs and coral debris, making them a classic example of coral islands.
  • Option B: This option is incorrect. The Andaman and Nicobar Islands are not primarily coral islands. They are a mix of volcanic and tectonic islands, with some coral formations present but not dominant.
  • Option C: This option is incorrect. While the Maldives are coral islands, the question specifically asks about Indian island groups, and the Maldives are an independent country located in the Indian Ocean.
  • Option D: This option is incorrect. Since the Lakshadweep Islands are coral islands, this option cannot be correct.

Mnemonic: LAK - Lakshadweep Are Koral

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