Final answer:
Compressional stress is associated with folds at convergent boundaries, tensional stress leads to normal faults at divergent boundaries, and shear stress is related to strike-slip faults at transform boundaries.
Step-by-step explanation:
To which stress, strain, structure, and plate boundary are correctly matched can be complex as it requires specific examples, but more generally, compressional stress is associated with fold structures like anticlines and synclines and is commonly found at convergent boundaries; tensional stress leads to faults like normal faults and is typically seen at divergent boundaries; and shear stress is related to strike-slip faults which are characteristic of transform boundaries.
Plate boundaries are regions where two tectonic plates meet. The stress applied at these boundaries, caused by the movement of the plates, influences the structure of the Earth's crust. At convergent plate boundaries, plates move towards each other, creating compressional stress, which can result in the folding of rocks into anticlines and synclines or even the creation of mountains through orogeny. Divergent plate boundaries, where plates move apart, induce tensional stress that can cause the crust to thin and break, forming normal faults. Meanwhile, a transform plate boundary, characterized by plates sliding horizontally past each other, generates shear stress leading to the development of strike-slip faults. Each type of stress affects the rock in different ways, resulting in various geologic structures that provide us clues about the history of tectonic activities.