The Idea of Cycle of Erosion Was Figured By William Morris Davis, an American Geomorphologist, Towards the Finish of the Nineteenth Century. It Is an Idea of a Precise Succession of EvoluTionary Phases of Fluvial Erosion In Which Alleviation of the Accessible Landmass Decreases With Time to Arrive at a Late Stage When the Landscape Turns into a Peneplain. the Cycle of Erosion, As Imagined By Davis, Has Its Underlying Stage When the Landmass Is Quickly Raised By Inner Earth Powers, Trailed By a Long Time of Structural QuiesCence. When Raised High Above Ocean Level As a Landmass, Streams Appear and Erosion Starts to Work on the Elevated Mass Which Is Progressively Worn Out Nearly to a Plain. the Landmass May, at some Later Time, Be Restored and the Cycle Starts Again and Remainders of the Prior Cycle of Erosion Are Safeguarded at New and More Significant Levels.