NEET BIOLOGY

Detailed explanation-1: -An artificial reef is a human-made underwater structure, typically built to promote marine life in areas with a generally featureless bottom, to control erosion, block ship passage, or improve surfing.

Detailed explanation-2: -Rigs to Reefs As the platforms age, the populations of fish and other marine organisms that live near the structure increase. A single platform can provide habitat for thousands of fish. These artificial reefs offer shelter to large numbers of fish.

Detailed explanation-3: -Florida. Florida is the site of many artificial reefs, many created from deliberately sunken ships, including Coast Guard cutters Duane and Bibb and the U.S. Navy landing ship Spiegel Grove.

Detailed explanation-4: -Coral reefs are large underwater structures composed of the skeletons of colonial marine invertebrates called coral. Corals are of two types: Hard coral and Soft coral.

Detailed explanation-5: -A coral reef is made of thin layers of calcium carbonate Coral polyps form a living mat over a calcium carbonate skeleton. Stony corals (or scleractinians) are the corals primarily responsible for laying the foundations of, and building up, reef structures.