Where does seafloor spreading occur?

1 Answer
Oct 18, 2015

Answer:

Seafloor spreading or ocean-floor spreading happens at the midocean ridges.

Explanation:

This happens when lava erupts from the lift valley that runs the length of the ridge. When the lava wells up and hardens, the ocean floor is pushed away on either side of the ridge. The hardened lava forms new ocean floors.