The amount of water needed varies with crops and depends from place to place, on local productivity and conditions of available water supply through rainfall or irrigation. Once the product is harvested and becomes available on the market, the water embedded in the product changes status from ‘real’ water to ‘virtual’ water.
"Descendants of William Mabe-8 Generations" by James Mabe. An online format book with eight generations of William Mabe's Descendants. By using the Table of Contents, the back button on your browser, and the Index feature you should be able to navigate through the report easily.