Maharashtra State PSC Model Paper 3

The correct answer is Natural levees.

• Natural levees are formed in the lower course of the river.
• A river has 3 stages :
  • Youth or Upper course :
    • steep-sided V-shaped valleys
    • Waterfalls
    • Rapids
    • Gorges
    • Interlocking spur
  • Mature or Middle course
    • ​Deep V-shaped valleys
    • Meanders
    • Oxbow lakes
  • The old or Lower course
    • Floodplains
    • Deltas
    • Natural levees
• River course :