UPSC 2005 › Environment & Ecology › Water & Wetland Conservation

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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.
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Answer: (b) Volume of water required to produce a commodity or service.