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Geography Optional 300+ Score Pack · Model answer

Examine the distribution and balance of energy in the Earth’s atmosphere system.

  • UPSC 2025
  • Climatology

Earth's energy comes almost wholly from shortwave solar radiation and leaves as longwave terrestrial radiation; averaged over the globe and over many years the two nearly balance, which keeps mean temperature stable.

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

  • Distribution of Incoming Energy
  • The Heat Budget — the 100-Unit Model
  • Counter-Radiation and the Greenhouse Effect
  • Latitudinal Imbalance and Heat Transport
  • Other Imbalances
  • Is the Balance Exact Today?
  • …and 1 more sections, with a conclusion

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