Geodynamics is the study of the movement of the Earth's crust and the forces that cause these movements. This field of research examines the processes that shape the Earth's surface, such as plate tectonics, mountain building, volcanic activity, and earthquakes. Geodynamic studies combine the principles of geology, physics, and mathematics to understand the complex interactions between the Earth's lithosphere, asthenosphere, and deep interior. By investigating the forces driving these processes, geodynamicists can better understand the geological history of the Earth and predict future changes in the planet's structure and surface dynamics.