Final answer:
Fast-moving water leads to greater erosion than slow-moving water due to its higher kinetic energy.
Step-by-step explanation:
Fast-moving water leads to greater erosion than slow-moving water because of its higher kinetic energy. The energy of the moving water enables it to dislodge and carry away sediment and rocks from the riverbed or streambank. The greater the kinetic energy, the more forceful the water can be in eroding the land.