Question

How are coral reefs formed? Mention types of coral reefs.Please give a simple answer for a student of class9

Answer 1

Answer:

This theory states that coral reefs were first formed as fringing reefs on sloping shores, they became barrier reefs when the shores sank with water channel between them and the land. If the land is an island which sinks completely, then an atoll is formed.

Answer 2

Answer:

Coral reefs begin to form when free-swimming coral larvae attach to submerged rocks or other hard surfaces along the edges of islands or continents. As the corals grow and expand, reefs take on one of three major characteristic structures — fringing, barrier or atoll.

Explanation:

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