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 and fold. Anticlines and synclines are types of folds formed due to compressional forces. Normal faults are formed by tensional stress, strike - slip faults by shear stress, and fault - block mountains are formed due to movement along normal faults related to tensional forces.

Answer:

anticline and syncline