An atoll typically forms a ring-shaped structure, consisting of a coral reef encircling a lagoon. This formation occurs as coral grows around the rim of a submerged volcanic island, which eventually erodes away. The result is a circular or oval formation with a central lagoon, often characterized by shallow waters and rich marine biodiversity.
A coral atoll.
A small island in a horseshoe shape is an atoll.
Atoll reefs form lagoons.
atoll
Atoll reefs usually only form where stony coral growth is quite rapid. They are far more common in pacific reefs than atlantic. However, an atoll is simply a coral reef that encloses a lagoon, and technically they could form anywhere where reefs form.
An atoll is a ring-shaped coral island or string of islands that surround a lagoon. Atolls typically form from volcanic islands that sink into the ocean, leaving a coral reef formation around the edge of the submerged island. The lagoon in the center of an atoll is often shallow and can support diverse marine life.
a group of small coral islands in the shape of a ring that encloses a lagoon
bikini atoll
the oppsite of atoll is planet
Atoll is a noun.
bikini atoll
Allot and atoll.