This is known as an atoll.
Mauritius
No, there are no volcanoes in the Bahamas.
Mostly volcanic.
An atoll is formed first as a reef that fringes a volcanic island. As the island sinks (after the volcanic activity has ceased and the crust has cooled, becoming denser), the reef continues to build upward, eventually ending up as a ring-shaped structure.
An atoll is formed from an island, but it isn't entirely an island. It's a coral reef that makes the different. The reef grows in a ring around the island and the island erodes, until little if any of it is above the surface of the water and the coral reef remains. Islands are any small body of land surrounded by water. Islands in the middle of the ocean are usually volcanic and islands in lakes and near continents are usually just areas of the continental shelf surrounding the continent with a higher elevation. To actually answer your question, the KEY difference is the reef.
i think it is warm
Bora Bora exemplifies what Charles Darwin called an "almost atoll," a barrier reef island formed by an oceanic volcano with a fringing coral reef. Over the course of the years, as the surrounding coral reef grows upward, the island with the volcano sinks.
An atoll is a type of island made from a coral reef that encircles a lagoon. It is often the top of an underwater volcano.
coral island
An atoll is a ring-shaped coral reef island that encircles a lagoon partially or completely. Atolls are typically found in the Pacific Ocean and are formed from the remnants of volcanic islands that have submerged over time. The circular shape of atolls is a result of coral growth around the rim of a sinking volcanic island.
The Coral Island was created in 1857.
they help build coral reefs by speading their waist along the sealine to help build coral reefs.
It depends. On an island that was formed from a volcano, it would be volcanic rock. On a coral island, more coral. In Florida, if you dig down enough you'll hit the crust with in that part of the world is a clay like soil. It really depends on the geology of the area you're at.
atolls
A small low island on a coral reef is Kuff
coral cove is a cave that is situated in an island . mostly in island of blue dolphins
a island with a flatter terrain
A circular coral island that encloses a lagoon is called an atoll. Atolls are typically formed from coral reefs that grow around the rim of a submerged volcanic island.