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Geography Optional 300+ Score Pack · Model answer

“The world is simultaneously experiencing a population explosion and a population implosion.”

  • 20 marks
  • Population Geography

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Population explosion is rapid growth produced when mortality falls decades ahead of fertility, amplified by a young age structure. Population implosion is absolute decline and ageing produced by sustained sub-replacement fertility. Both are visible in a single global figure — 8.2 billion people in 2024, a global TFR of about 2.2, and a projected peak…

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What the full answer covers

  • The Two Poles in One Global Statistic
  • The Explosion Pole: Sub-Saharan Africa
  • Why Fertility Remains High
  • Momentum, Not Merely Fertility
  • The Developmental Challenge: Dividend or Burden
  • The Implosion Pole: East Asia and Europe
  • …and 4 more sections, with a conclusion
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