10 ) More erosion was taking place
11) Waves and currents are constantly beating on rock formations either on cliff faces that are between a rushing river, or the large rocks that the ocean waves crash onto. These sediments that are created by these examples of erosion are carried to new areas where, over time, they will begin to dorm new rock formations (Sedimentary rock)
12) Due to the loss of support that the groundwater acted as for the land that resided over on top of it, the ground began to collapse due to the lack of the water's support.