The type of stress that can change the shape of rocks is known as tectonic stress. This stress occurs due to the movements of tectonic plates, leading to various geological phenomena such as folding, faulting, and mountain building. Tectonic stress can be classified into three main types: compressional, which pushes rocks together; tensional, which pulls them apart; and shear stress, which causes them to slide past each other. The response of rocks to this stress determines their structural characteristics and is critical for understanding geological processes, including earthquakes and the formation of landforms.