River Processes: Erosion, Transportation & Deposition | Grade 6-9 Geography General Information: Detailed explanation of how rivers shape landscapes through three main functions: erosion (four methods: abrasion/corrasion, attrition, hydraulic action, solution), transportation (traction, saltation, suspension, solution), and deposition (when volume or speed decreases). Includes velocity-sediment relationship diagram and energy concepts. Estimated Content:Number of slides: ~16–18 (intro, four ero