when land walls , that land expands & if there is a clip in a rock, then land can put into the observations ->  if water freezes in the crack of the rock, then water will expand in the crack  if water freezes in the crack of the rock, then water will expand in the crack & if land expands in a satellite in a rock, then the stone will fix apart -> if water freezes in the crack of the rock, then the rock will break apart by water expanding when it freezes