Download ✓ https://cinurl.com/2uUq2N Class 9 Geography Chapter 3 Drainage PDF Download Drainage is the process of removal of excess water from the land surface or the subsurface by natural or artificial means. A drainage system is a network of watercourses or drains that carry away the surplus water. A drainage basin is an area of land that drains all the water to a common outlet such as a...
