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Natural resources: definition and classification | rashid's blog: an educational portal
Natural resources are naturally occurring substances that are considered valuable in their relatively unmodified (natural) form. A natural resource's value rests in the amount of the material available and the demand for it. The latter is determined by its usefulness to production. A commodity is generally considered a natural resource when the primary activities associated…
rashidfaridi.com/2008/02/26/natural-resources-definition-and-classification/