Question

part of molten rock at mid-ocean ridges

Answer 1

Mid-ocean ridges form where two tectonic plates are pulling apart, also called seafloor spreading. ... Magma (or molten rock) from below mid-ocean ridges fills in the area where the tectonic plates are pulling apart, and the rock that forms when it hardens is usually basalt.

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Answer 2

Answer:

Magma (or molten rock) from below mid-ocean ridges fills in the area where the tectonic plates are pulling apart, and the rock that forms when it hardens is usually basalt.