Question

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

Explanation:

Compressional stress causes rocks to fold. Anticlines (up - arched folds) and synclines (down - arched folds) are formed due to compressional forces acting on rock layers. A normal fault is formed by tensional stress (pulling apart). A strike - slip fault is formed by shear stress (side - to - side movement). A fault - block mountain is formed by tensional stress which causes normal faults and uplift of blocks of the Earth's crust.

Answer:

antifine and syncline