What is a coral reef.

Question

What is a coral reef.

Answer 1

coral reefs are found in marine waters formed from the secretions of marine animals.

Answer 2

In nautical terminology, a reef is a rock, sandbar, or other feature lying beneath the surface of the water yet shallow enough to be a hazard to ships. Many reefs result from abiotic processes—deposition of sand, wave erosion planning down rock outcrops, and other natural processes—but the best-known reefs are the coral reefs of tropical waters developed through biotic processes dominated by corals and calcareous algae

Answer 3

coral reef is the one of biggest coral in the world