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Geography Optional 300+ Score Pack · Model answer

Drainage pattern in Peninsular India is a result of its geological structure and topography. Elaborate.

  • UPSC 2017
  • Physical Setting

Peninsular drainage is the oldest and most structurally constrained in India. Its rivers flow across a rigid, long-denuded shield that has undergone no orogeny since the Precambrian, so they have had to adjust to the block rather than reshape it.

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What the full answer covers

  • Topography Sets the Direction
  • Structure Overrides Slope Where It Is Strong Enough
  • Pattern Follows Rock and Fracture
  • The Character That Follows
  • Why This Still Matters

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