Answer:
a Mid-ocean ridge
Explanation:
The middle of the Atlantic ocean is a divergent margin between two oceanic crusts.
As the crusts pulls apart, part of the asthenosphere wells up and forms magmatic bodies around the edges of the plate.
- This forms an extensive mountain ridge called the mid-oceanic ridge.
- It is one of the most prominent landmark on the earth crust.
- As the divergent margins moves apart, the mid oceanic ridge continues to grow.
- The ridge is basaltic in nature.
