Ice wedging is when ice causes rocks to crack by expanding in openings, and ice wedging is the most important form of mechanical weathering. Given these facts, what does mechanical weathering do to a rock among the following options:
- move to different locations
 - Causes it to crack
 - Makes it shrink
 - break off
 - Regrows it
 - decreases its bodily water
 - Moves it
 - Causes it to grow


 

  Causes it to crack       