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Geography Optional 300+ Score Pack · Model answer

Describe the regional pattern of Life Expectancy in the world and bring out the challenges faced by developing countries due to increasing life expectancy.

  • UPSC 2016
  • Population and Settlement Geography

Life expectancy at birth (LEB) — the average number of years a newborn would live under prevailing age-specific mortality — is the single most sensitive index of a population's health and development. Global LEB stands at about 73 years, having fallen to roughly 71 during COVID-19 and since recovered.

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

  • The Four-Tier Regional Pattern of World Life Expectancy
  • Tier I — The 84-Plus Core: East Asia and Mediterranean Europe
  • Tier II — High-Middle: North-West Europe, Anglo-America, East Asia (78–83)
  • Tier III — Middle: Latin America, West Asia, South and South-East Asia (68–77)
  • Tier IV — The Global Floor: Sub-Saharan Africa and Conflict States (below 60)
  • Gender and Sub-National Gradients Cutting Across Regions
  • …and 5 more sections, with a conclusion

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