the sentences below describe the formation of a waterfall.write them out in the correct order
1. Over time, the water erodes soft rock and creates a plunge pool at the base of the waterfall.
2. Water from a river flows over a steep drop or cliff, creating a vertical descent.
3. The force of the water and gravity causes the waterfall to continue to erode and move upstream.
4. As erosion continues, the waterfall recedes and may change shape or size.