Force : An action exerted by one body on another

Stress: A force acting upon a surface is referred to as pressure or stress.

Rocks are affected by four kinds of stress which differ in their directional properties.

1. Compressional Stress: Occurs when a rock is squeezed and the opposing forces are directed toward one another.

2. Tensional Stress: Develops when a rock is pulled apart, with the forces directed away from each other.

Some topics in this essay:
Rocks Crystalline, Movement Groundwater, Behavior Slowly, Stress Force, Law- V=kd/L--------velocity, Stress Stress, Deformation Rocks-, Brittle Deformation-, Plastic Deformation-, Strain Strain, water table, hydrostatic stress, deformation- deformed body, stress stress, deformed body, deformation- deformed, shear stress, stresses applied, stresses stresses, saturated zone, stress released strain, applied stresses stresses, rapidly applied,