Sedimentary rock may variety from pieces of other rock. In a very process named erosion, wind and drinking water slowly and gradually crack rock into very small pieces. Water washes the items into rivers. They settle along the river bottom in delicate, loose layers named sediment. Encyclopaedia Britannica's editors oversee https://sticks-of-rock91122.tkzblog.com/36080445/details-fiction-and-sticks-of-rock