The movement of the Earth's plates is referred to as "plate tectonics." This geological theory explains the large-scale motions of Earth's lithosphere, which is divided into tectonic plates. These plates float on the semi-fluid asthenosphere beneath them and move due to convective currents caused by heat from the Earth's interior. Plate tectonics is responsible for various geological phenomena, including earthquakes, volcanic activity, and the formation of mountain ranges. The interactions at plate boundaries can be classified as divergent, convergent, or transform, each resulting in distinct geological outcomes and reshaping the Earth's landscapes over geological timescales.