An atoll is approximately ________ in shape because it forms ________.
A) circular; around seastacks
B) circular; around submerged volcanic islands
C) linear; along barrier islands
D) linear; along continental shorelines

Question

Quizplus · Accepted Answer

An atoll is a ring-shaped coral reef that forms around a submerged volcanic island. The shape of an atoll is typically circular and surrounds a lagoon. Therefore, choice B is the most accurate.

An Atoll Is Approximately ________ in Shape Because It Forms