Types of industry:Tertiary/Service Industry and Quaternary Industries

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Tertiary or service industries

• These industries provide back-up services to primary and secondary industries so that their functioning becomes easier.
• Examples include administration, retailing, transport and distribution, power supplies, health, education and housing.
• These industries are closely linked with each other, with manufacturing and with other services like banking, insurance and information.

Quaternary industries

• These include high technology industries which have rapidly developed within the last 25 years.
• Processing done here involves micro-electronics such as those of Microsoft industries but included here is manufacture of precision medical tools, biotechnology and pharmaceuticals.
• Information, office work expertise and research and development constitute major inputs into these industries.
• In advanced countries, much of the labour force is employed in these industries.

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