Question

Describe how coral reefs form.

Answer 1

Coral reefs begin to form when free-swimming coral larvae attach to submerged rocks or other hard surfaces along the edges of islands or continents.

Answer 2

Step-by-step explanation:

The coral reefs are formed when the free- moving coral larvae in the oceanic water get attach to the submerged rocks or with the hard surfaces along the edges of the continents. As the reef grow and expands it takes three characteristic forms- these are fringing, atoll and barrier. Fringing reefs forms the borders along the shoreline. The barrier reef also forms the border to the shorelines. These are separated by the lagoon of open deep water. Atolls are circular, with a central lagoon.

The coral reefs are supported by the deposition of calcium carbonates.