Question

Why are coral reefs important?

• A. They contain the most diverse ecosystems on the planet
• B. They protect coastlines from the damaging effects of wave action and tropical storms
• C. Provide habitats and shelter for many marine organisms
  
• D. All of the above

Answer 1

The correct option is D All of the above

• Coral reefs can be described as colonies of coral polyps which are held together by calcium carbonate.
• Importance of coral reefs are:-

1) They provide shelter to a wide range of marine animals such as sea anemones, echinoderms, fishes etc.

2) They act as spawning and feeding sites for the marine animals.

3) They act as a barrier and protect our coasts from waves, storms, and floods.

4) Corals are used as a calcium supplement for treating various diseases such as sclerosis and cancer etc.

So the correct answer is 'All of the above'.