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UPSC CSE Prelims 2013 · GS paper

On the planet earth, most of the freshwater exists as ice caps and glaciers. Out of the remaining…

A question from UPSC Civil Services (Preliminary) Examination 2013, General Studies, explained with its sources.

Prelims 2013 · archive

Easy

On the planet earth, most of the freshwater exists as ice caps and glaciers. Out of the remaining freshwater, the largest proportion

Answer & explanation

Answer: (c) exists as groundwater

Answer: (c). Ice holds most of Earth's freshwater, roughly 70–78%. Groundwater holds most of the rest, roughly 22–30%. Lakes, rivers, soil moisture and the atmosphere together hold only a tiny fraction, well under 1%.

  • ✗ (a) Water held in the atmosphere as vapour and clouds is a minute fraction of freshwater, far smaller than groundwater.
  • ✗ (b) Freshwater lakes and rivers are visible and important, but together they hold only a tiny share of freshwater, much smaller than groundwater.
  • ✓ (c) Groundwater makes up roughly 22–30% of all freshwater. That makes it by far the largest store after ice.
  • ✗ (d) Soil moisture is a very small store of freshwater, far below groundwater.

Remember · Freshwater stores: ice (~70–78%) > groundwater (~22–30%) > everything else (lakes, rivers, soil moisture, atmosphere) together, well under 1%.

📘 Read it in NCERT: Class 11 Fundamentals of Physical Geography, Ch 12 (practise this chapter)

Sources

Question: UPSC Civil Services (Preliminary) 2013, General Studies paper. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). ·

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