Q. With reference to coral reefs, consider the following statements:
1.Coral reefs are absent in cold waters.
2.All types of coral reefs need sunlight to survive.
Which of the statements given above is/are correct?

[A] 1 only

[B] 2 only

[C] Both 1 and 2

[D] .Neither 1 nor 2

Answer: D
Notes:
  • Statement 1 is incorrect: They are also found in cold waters (temperature as low as 4°C) at depths between 40m to 2000m
  • Statement 2 is incorrect: Coral reefs present in cold waters do not require sunlight to survive and don’t have zooxanthellae living in their polyps.

Source: Article