Boundaries are formed by activity between the Earth’s tectonic plates
one plate slides underneath the other, creating and
plates grind past each other, creating tectonic plates
1 answer
Boundaries are formed by activity between the Earth's tectonic plates. At convergent boundaries, one tectonic plate slides underneath the other, creating subduction zones and volcanic activity. At transform boundaries, plates grind past each other, creating earthquakes and the formation of transform faults.