WONDER #1935: How Does an Atoll Form?

Question 1 of 3

An atoll surrounds a body of water called a what?

1. lake
2. river
3. pond
4. lagoon

Question 2 of 3

The process by which a volcanic island erodes and sinks to the sea floor is called what?

1. evolution
2. photosynthesis
3. subsidence
4. eruption

Question 3 of 3

The ring-shaped reefs that make up an atoll are composed of what?

1. coral
2. ringworm
3. gold
4. fish

Check your answers online at https://www.wonderopolis.org/wonder/how-does-an-atoll-form.