What causes the seafloor to spread apart at mid-ocean ridges?
Select one:
Waves in the...
What causes the seafloor to spread apart at mid-ocean ridges?
Select one:
Waves in the ocean pull the plates away from each other.
Earth is growing in size, and the mid-ocean ridges are where the crust has cracked to allow Earth to get bigger.
Earth's magnetic field is so strong it pushes apart iron-filled rocks.
Hot magma rises through the boundary at mid-ocean ridges, creating new rock and pushing apart the plates.
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