Question

Which underwater ecosystem is made of calcium carbonate structures?

Answer 1

Answer:

coral reefs

Explanation:

A coral reef is one of the forms of underwater ecosystem. Coral polyps forms the colony with the helps of the calcium carbonate and helps in forming the reefs. The presence of coral reefs helps in preventing from storms and erosion. They are a source of recreation and tourism for the people. In the recent times, there have been severe threat to the ecosystem because of the pollution and abrupt change in climatic conditions.

Answer 2

Answer:

Hi! The answer is corals reef

Explanation:

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