Consider the following statements: 1. Most of the

Solution

All Statements are correct : Coral reefs are large underwater structures composed of the skeletons of corals, which are marine invertebrate animals. Reef-building corals require warm ocean temperatures (20° to 28° C). Hence most of the coral reefs are found in tropical waters. More than three-quarters of the world's reef-building coral species can be found within the waters of "Coral Triangle", the area covering the reefs of northern Australia, Indonesia, Phillipines and Papua New Guinea. Coral reefs have much more animal phyla than those found in tropical rainforests. 32 of the 34 recognised animal Phyla are found on coral reefs compared to 9 Phyla in tropical rainforests.