answersLogoWhite

0

Some island are formed when there is a large landmass and the sea level rises, encompassing only some of the original land, and other islands are formed when an undersea volcano goes off, at the cooled down lava hardens to form landmasses. Eventually, the hardened lava accumulates to the point where the island is large enough to live on.

User Avatar

Wiki User

10y ago

What else can I help you with?