Asked by Johnny Davis on Jul 01, 2024
Verified
What is a popular model for the formation of an atoll?
A) a moderate-sized meteoroid forms a circular crater on the seafloor
B) a volcanic eruption forms a large circular caldera
C) a volcanic island forms and subsides
D) a barrier reef becomes buried by volcanic eruptions
Atoll
A ring-shaped coral reef, island, or series of islets surrounding a lagoon, often found in tropical ocean waters.
Meteoroid
Solid object in interplanetary space; distinguished from asteroids by a smaller size.
Volcanic Island
An island formed from the accumulation of material erupted through the crust from a volcanic vent, typically found in oceans.
- Discern the distinct varieties of islands, like volcanic islands and atolls, and acquire knowledge about their developmental mechanisms.
Verified Answer
ZK
Zybrea KnightJul 02, 2024
Final Answer :
C
Explanation :
Atolls are formed from the subsidence of volcanic islands. As the volcanic island erodes and subsides, coral growth continues upward, eventually forming a ring-shaped reef known as an atoll.
Learning Objectives
- Discern the distinct varieties of islands, like volcanic islands and atolls, and acquire knowledge about their developmental mechanisms.