Here's why:
* Creep: This is a very slow, gradual movement of soil and rock downslope. It happens over long periods, often driven by freeze-thaw cycles, wetting and drying, or the expansion and contraction of soil. It's almost imperceptible in the short term but can lead to significant changes over decades or centuries. Think of a tree leaning downhill or fences that become tilted.
* Rock fall: This is a rapid, sudden event where rocks break loose from a cliff face or slope and tumble down. It's often triggered by things like earthquakes, heavy rain, or erosion. Rockfalls can cause significant changes to a landscape quickly, but they are less frequent than creep.
In summary:
Creep is a slow, continuous process that gradually shapes the landscape over time, while rockfalls are rapid, sporadic events that cause more dramatic but less frequent changes.
