Answer:
Conservation of momentum.
Momentum is zero after collision, no direction or speed.
Explanation:
Convergent boundaries form earthquakes, which forms mountains and islands.
Seafloor spreading<span> is a process that </span>occurs<span> 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.
Hope this helps</span>
