Large, lithified formations of calcium carbonate formed from both living and skeletal coral colonies are called
A) atolls.
B) coral reefs.
C) barrier islands.
D) tombolos.

Question

Quizplus · Accepted Answer

Coral reefs are large, lithified formations of calcium carbonate formed from both living and skeletal coral colonies. Atolls are a type of coral reef, but specifically refers to a ring-shaped coral reef that encircles a lagoon. Barrier islands are long, low-lying islands that are parallel to the coast and formed from sediment deposition. Tombolos are narrow sandbars that connect an island to the mainland or to another island.

Large, Lithified Formations of Calcium Carbonate Formed from Both Living