which of the following forms at mid-ocean ridges?
The massive Mid-Ocean Ridge system wraps around the globe like seams on a baseball, stretching an impressive 65,000 kilometers (40,390 miles). The majority of the system is underwater, with an average water depth to the top of the ridge of 2,500 meters (8,200 feet). Mid-ocean ridges are geologically important because they occur along divergent plate boundaries, where new ocean floor is created as the Earthâs tectonic plates spread apart.