Question

A reef that surrounds a volcanic island is a(n): atoll guyot graded bed turbidity current

Answer 1

Atoll hope this helps.

Answer 2

a reef than surrounds a volcanic island is an : Atoll

Atoll usually takes shapes in a form of ring that surround the areas of volcanic island that consist of corals. It usually only exist in warm waters, so volcanic islands will provide perfect environment for the corals

hope this helps