The borders that separate the Earth’s tectonic plates are known as plate boundaries. These boundaries can be categorized into three main types: divergent, convergent, and transform boundaries. At divergent boundaries, plates move apart, allowing magma to rise and create new crust, like at mid-ocean ridges. Convergent boundaries occur when plates collide, leading to subduction, mountain building, or other geological phenomena. Transform boundaries, where plates slide past one another, are associated with seismic activity. Understanding these boundaries is essential for studying geological processes and predicting earthquakes and volcanic activity.