1. These volcanoes occur in the oceanic areas. 2. There is a system of mid-ocean ridges more than 70,000 km long that stretches through all the ocean basins. 3. The central portion of this ridge experiences frequent eruptions.
1. These volcanoes occur in the oceanic areas. 2. There is a system of mid-ocean ridges more than 70,000 km long that stretches through all the ocean basins. 3. The central portion of this ridge experiences frequent eruptions.