GS-I · UPSC Mains PYQGeography 2018 10 Marks

Define mantle plume and explain its role in plate tectonics.

Microtheme: Geomorphology · Asked in UPSC Civil Services Mains Examination 2018.

Microtheme deep dive

Geomorphology for UPSC: Landforms, Processes, Applications

Plate tectonics, endogenic/exogenic processes, Indian landforms and applied geomorphology — with diagrams UPSC rewards.

Read the deep dive

Model Answer Approach

  1. Decode demand: Identify the directive verb (discuss / examine / critically analyse) and bound the scope to Geomorphology.
  2. Intro (40–50 words): Define the core concept; anchor with a definition, data point, or constitutional/historical reference.
  3. Body: 2–3 thematic sub-heads with crisp points, examples and counter-arguments. Add a relevant case study or committee/report.
  4. Conclusion (30–40 words): Forward-looking — recommendations, way forward, or a constitutional/ethical anchor.

Structure Checklist

  • ✓ Definition / context in intro
  • ✓ Minimum 1 data point or report
  • ✓ Multi-dimensional arguments
  • ✓ Counter-view / limitations
  • ✓ Diagram, flowchart or map (if applicable)
  • ✓ Way forward in conclusion

Keywords to Use

explaintectonics

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