Explain how anticline and syncline ridges are created and how they are affected by weathering and erosion. a) Anticline: Upward-folding; Syncline: Downward-folding b) Anticline: Downward-folding; Syncline: Upward-folding c) Anticline: Uplifted; Syncline: Depressed d) Anticline: Depressed; Syncline: Uplifted