Question

which forms as a result of compressional stress?
anticline and syncline
normal fault
strike - slip fault
fault - block mountain

Explanation:

Compressional stress causes rock layers to bend. Anticlines (up - arched folds) and synclines (down - arched folds) form due to compressional stress. A normal fault is formed by tensional stress. A strike - slip fault is formed by shear stress. A fault - block mountain is formed by tensional stress (as it involves the movement of blocks along normal faults).

Answer:

anticline and syncline