Answers

2014-07-21T21:57:27+05:30
Primary sector includes raw materials, secondary sector includes the manufacturing of the materials and tertiary sector provides service to the primary and secondary sector. example transport, advertisements etc.
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2014-07-28T19:25:20+05:30
The three-sector theory is an economic theory which divides economies into three sectors of activity: extraction of raw materials (primary), manufacturing (secondary), and services (tertiary).
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