Question

Brief note on primary,secondary,tertiary sector

Answer 1

The primary, secondary and tertiary sectors represent various business types and the goods they produce and sell. It's easiest to think of them as a chain of production, from extracting the raw materials (primary) through manufacturing (secondary) and finally to servicing the end consumers (tertiary).

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Answer 2

Primary sector includes agricultural activities.
Secondary sector makes products by the raw materials of primary sector.
Tertiary sector provides jobs.