Levels of Industry
Primary (Agricultural) Takes natural resources from the earth— Examples: fishing, mining, forestry and agriculture.
Secondary (Manufacturing) Makes products using the natural resources—Examples: construction, factories, and processing plants.
Tertiary (Wholesale/Retail/Service) Sells a product or provides a service—Examples: restaurants, supermarket, hospitals, schools.
Quaternary Gathers information then provides ideas and support to the other levels of industry. Ex: research, survey companies, news, entertainment,
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