Read this passage from the National Oceanic and Atmospheric Administration, or NOAA. What should you NOT infer from these sentences?

If a fringing reef forms around a volcanic island that subsides completely below sea level while the coral continues to grow upward, an atoll forms. Atolls are usually circular or oval, with a central lagoon.


-Lagoons surround fringing reefs.


-Atolls have submerged volcanic islands in their midst.


-Some atolls are not circular or oval.


-Some fringing reefs create atolls.