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 are upward - arched folds and synclines are downward - arched folds, formed due to compressional stress. Normal faults are formed by tensional stress, strike - slip faults by shear stress, and fault - block mountains by tensional stress that causes blocks of the Earth's crust to move up or down.

Answer:

anticline and syncline