Consider the following statements:
- 1.Most of the world's coral reefs are in tropical waters.
- 2.More than one-third of the world's coral reefs are located in the territories of Australia, Indonesia and Philippines.
- 3.Coral reefs host far more animal phyla than those hosted by tropical rainforests.
Which of the statements given above is/are correct?
- A.1 and 2 only
- B.3 only
- C.1 and 3 only
- D.1, 2 and 3
▶ Answer & Explanation
Correct answer: D. 1, 2 and 3
Coral reefs thrive in shallow, warm, tropical waters where sunlight penetration is adequate for photosynthesis by symbiotic algae. A significant portion of the world's reefs are concentrated in the Indo-Pacific region, particularly around the Coral Triangle, which includes Australia, Indonesia, and the Philippines. While coral reefs are exceptionally biodiverse, hosting a large number of species, the statement that they host *more animal phyla* than tropical rainforests is generally considered accurate due to the high degree of specialization and unique evolutionary paths in these marine ecosystems.
Source: UPSC gs1 2018