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Geography Optional 300+ Score Pack · Model answer

Describe the configuration of the Pacific Ocean floor.

  • UPSC 2017
  • Oceanography

The Pacific Ocean floor's configuration — its shelves, trenches, ridges, and basins — is the single clearest real-world validation of Harry Hess's seafloor-spreading model (1960s), since almost every major landform on this floor traces directly to a plate boundary process.

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

  • Continental Margins — Mostly Active, Rarely Passive
  • Deep-Sea Floor Features
  • Ocean Trenches — the Ring of Fire
  • The Mid-Oceanic Ridge System — East Pacific Rise
  • Seamounts, Guyots, and Hot-Spot Island Chains
  • Abyssal Plains and Basins
  • …and 1 more sections, with a conclusion

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