Factors that affect soil formation by keypoint 1. Parent rock or parent materials. 2. Climatic conditions. 3. Living organisms. 4. Topography of an area. 5. Time. Others are Viewing: Processes of Soil Formation Factors that Affect the Shape & Pattern of Volcanoes Factors that Affect Weathering Factors that Affect Mass Movements Factors that Affect Flow of River Water Factors that affect Vegetation Growth Clay Soil