The document discusses key features and processes of river systems, including that a river's drainage basin is the area of land drained by the river and its tributaries, waterfalls form when a river flows over harder and softer rocks at different rates, and sediments deposited at river mouths over time can create deltas with distributaries.

1. The River System

2. Recap

9. Course of a River

11. The Drainage Basin The area drained by a river and its tributaries River River source Tributary River mouth Drainage basin Watershed

12. Drainage Basin

15. Main River

16. Confluence The point where the tributary join the main river.

17. Watershed & Drainage basin

18. Watershed & Drainage basin

20. Waterfall

21. Waterfall

27. Meander & oxbow lake

32. Features formed by rivers

34. River mouth & Delta

35. The sediments will be deposit at the river mouth which form a form a delta overtime.

36. River mouth Delta Distributaries

38. A B C D E F G