The Hawaiian<span> Emperor seamount chain is a well-known example of a large seamount and </span>island<span> chain created by hot-spot </span>volcanism<span>.</span>
If you have an i phone then ask siri what the question is
Tha magma starts under the ocean and cools Down to make a mountain and then the lava makes a whole at the top so the magma can flow out of the top