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Title: Material use rates rose substantially in the twentieth century. Post by: lovingrace on Jan 21, 2018 Material use rates rose substantially in the twentieth century.
What will be an ideal response? Title: Material use rates rose substantially in the twentieth century. Post by: juliaguay on Jan 21, 2018 This is quite true. The twentieth century was the century of materials. The twenty
first century may well be the century of the service and information sectors, at least in the developed countries. |