In case of drastic emergency or fallout if the us were to stand alone it would need supplies it could get on its own
Answer: gold, ivory, and iron
Explanation:
Seafloor spreading<span> is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge. </span>Seafloor spreading<span> helps explain continental drift in the theory of plate tectonics. </span>
It would be a formal region.
