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Geography Optional 300+ Score Pack Ā· Model answer

Explain the role of evaporation in the hydrologic cycle.

  • UPSC 2018
  • Climatology

Evaporation is the change of liquid water into water vapour (and, as sublimation, of ice directly into vapour), using the latent heat of vaporisation ā€” about 600 calories per gram at 0Ā°C and 540 at 100Ā°C.

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

  • Evaporation as the Energy Engine of the Cycle
  • Evaporation's Place in the Cycle
  • Controls that Make the Cycle Uneven
  • A Changing Role: Current Evidence

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