Which one of the following types of coral reefs are developed along th

Which one of the following types of coral reefs are developed along the edges of continental shelves and separated by lagoon ?

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Patch reefs

Fringing reefs

Barrier reefs

Atoll reefs

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UPSC Geoscientist – 2024

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Coral reefs develop in different forms. Fringing reefs grow directly from the coastline. Barrier reefs are separated from the coast by a lagoon, which can be quite wide and deep. Atoll reefs are ring-shaped reefs enclosing a central lagoon, often formed around submerged volcanic islands. Patch reefs are isolated, small reefs. The description “developed along the edges of continental shelves and separated by lagoon” best fits the definition of Barrier reefs.

– Fringing reef: directly attached to the coast.
– Barrier reef: separated from the coast by a lagoon.
– Atoll reef: ring around a lagoon.
– Patch reef: isolated reef within a lagoon or platform.

Coral reefs are underwater ecosystems built by colony-forming corals. They are found in warm, shallow, clear marine waters. The Great Barrier Reef off the coast of Australia is the world’s largest barrier reef system.

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