Do you know how powerful water is? Although it appears fluid water can damage the rock it flows over continuously for some time. But waterfalls, falling water with very strong force. takes less time than that to erode the land. Like the Horseshoe Falls at Niagam Fall, the water of the falls wears away so much rock that the curve of the horseshoe shape has deepened by about 1.5 km in less than 300 years. The water force makes the falls shrink 1 m. evey year. Moreover, water can even form valleys and gorges. As in the case of rivers water may wear away the land for thousands of years and cause those beautiful landscapes to occur.