Question

Q57. With reference to the Coral Reefs, Consider the following statements
1. Coral has a symbiotic relationship with Zooxanthellae microscophic fungi which live on coral.
2. Only hard corals build reefs.
3. There are also deep water corals in the colder regions.
Which of the above statement(s) is/are correct?

• A. (a) Only 1 and 2
• B. (b) Only 2
• C. (c) Only 2 and 3
• D. (d) All of the above

Answer 1

The correct option is C (c) Only 2 and 3

Coral has a symbiotic relationship with Zooxanthellae microscophicalgae which live on coral. There are two types of corals: hard corals and soft corals, such as sea fans and gorgonians.Only hard corals build reefs. While the majority of coral reefs are found in tropical and sub-tropical water, there are also deep water corals in colder regions. The United Nations Environment programme reports that there are more cold-water coral reefs worldwide than tropical reefs.