Which of these is the best example of erosion? A Wind carries sand from one side of a beach to the other. B A flowing river wear
s down the edges of rocks so they feel smooth. C An earthquake causes a fault line to appear in the ground. D Ocean waves cause rocks to break down into sand.
Compression squeezes rocks together, causing rocks to fold or fracture (break) (figure 1). ... Rocks under tension lengthen or break apart. Tension is the major type of stress at divergent plate boundaries. When forces are parallel but moving in opposite directions, the stress is called shear