Biology
Berey853
4

How do island acres form?

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(2) Answers
hctaija2014ttbttb

Island arcs from when one oceanic plate subducts beneath another subducting plate.This subduction allows water into the mantle,causing volcanism.This volcanism pops up in a chain along the boundary between the plates.Since you have 2 plates on a sphere,the general shape they take is an arc. Hope this helps:)

EdLenberg675

it forms when the water lowers down then the land under water comes up to the surface hope this helps!!!!!!!!!!!!!!!!!!!!!!

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