BBC Bitesize: Rivers and Valleys (pages 4-6)
Sciencing: How a Delta Is Formed
National Geographic: Deltas
National Geographic: Alluvial Fan Formation
Glacial Erosion
National Snow & Ice Data Center: How do glaciers affect land?
Lumen Learning: Glacial Erosion and Deposition
American Geosciences Institute: What is glacial erosion?
Wave Erosion
Holderness Coast Case Study
BBC Bitesize: Holderness Coast
Taiwan News: Taipei's Tatun Volcanoes proven active
National Geographic: Wetland
Sicao Wetlands
National Park Service: How are wetlands formed?