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UPSC Prelims 2005 · Agriculture · Seeds, Water and Fertiliser
Virtual water trade is being looked at by experts as a solution to the world's water crisis. What does virtual water (VW) imply?
- (a) Volume of heavy water required to replace ordinary water
- (b) Volume of water required to produce a commodity or service
- (c) Volume of water saved by using rainwater harvesting
- (d) Volume of water utilized by an effective flood control
Show the answer and explanation
Answer: (b) Volume of water required to produce a commodity or service
Virtual water is the water used to produce a good — e.g. ~1,500 litres per kg of wheat. Importing grain = importing water.
Why the others are wrong
(a) Heavy water is for nuclear reactors.
(c) That is harvested water.
The trap
None.
🔒 Virtual water (Tony Allan): India exports lots of it through rice.
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