Question

what is secondary activity???

Answer 1

Manufacturing and Industry sector known as secondary sector, sometimes as production sector, includes all branches of human activities that transform raw materials into products or goods. The secondary sector includes secondary processing of raw materials, food manufacturing, textile manufacturing and industry.

Answer 2

☆Hello friend☆
Activities which are connected to manufacture the raw materials from nature into finished goods.
For example: steel industry.
$hope \: it \: helps$
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