answersLogoWhite

0

What are island made up of?

User Avatar

Anonymous

∙ 15y ago
Updated: 8/19/2019

They are made of magma (melted rock) under the water are volcanoes which burst and let magma get out the magma travels up and lays on the water which then drys and turns into an island.

User Avatar

Wiki User

∙ 15y ago

What else can I help you with?