| http://www.w3.org/ns/prov#value | - Animals such as pigs and cows convert grain into meat with a huge loss of energy transfer. (Think of 100 pounds of wheat and how much bread that can make, as opposed to how much a herd animals needs to eat over its lifetime before a pound of meat is produced.) And this, of course, does not factor in processing, packaging and transportation energy usage as costs.
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