Which option is most scientific for explaining the origin of Lakshadweep Islands?

Correct answer: Reef and atoll formation by coral organisms

Correct answer: B, reef and atoll formation by coral organisms. Lakshadweep is a group of coral islands in the Arabian Sea. Coral organisms grow in suitable warm, shallow marine environments and gradually construct reef frameworks. Some reefs develop around lagoons and take a ring-like atoll form. This biological and marine process best explains the island group. A is wrong because a river delta forms where a river deposits sediment at its mouth, not in the open Arabian Sea as Lakshadweep’s coral structures. C is wrong because Himalayan fold mountains are produced by tectonic compression and are not the origin of these low coral islands. D is wrong because desert sand is transported and deposited by wind and cannot account for coral reefs or atolls. Memory cue: the words “reef” and “atoll” point directly to coral islands.