Answer:
Convergent boundaries occur when two plates move towards, and bump into, one another. ... The plate that is pushed on top can form mountain ranges and valleys above water, and ocean trenches below water. Convergent plates also have been known to cause earthquakes above and below water.
Plate boundaries are where the action is. A large fraction of all earthquakes, volcanic eruptions, and mountain building occurs at plate boundaries. ... They learn where the Earth's tectonic plates and their boundaries are, what happens at the boundaries, and how scientists classify plate boundaries.
