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Geography Optional 300+ Score Pack · Model answer

Landslide is a major problem in Himalayan region. Discuss its causes and mitigation measures.

  • UPSC 2021
  • Contemporary Issues

A slope fails when shear stress on a slip surface exceeds shear strength; strength is cohesion plus effective normal stress times friction, so a rise in pore-water pressure cuts effective stress and the slope fails with no new load.

You are reading the opening of the model answer. The full answer is part of the Geography Optional 300+ Score Pack.

What the full answer covers

  • Causes I: The Mechanics of Slope Failure
  • Causes II: The Anthropogenic Accelerant, Where the Evidence Now Disagrees
  • Mitigation Measures
  • Map it, and make the map binding
  • Attack the pore-water pressure
  • Hold the slope
  • …and 2 more sections, with a conclusion

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