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Definition of Industry
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Primary Industries
extract raw materials (which are natural products) from the land or sea e.g. oil, iron ore, timber, fish. Mining, quarrying, fishing, forestry, and farming are all example of primary industries.
Secondary Industries
Involve the manufacture of raw materials, into another product by manual labour or machines.
Secondary industries often use assembly lines e.g. a car factory.
Tertiary Industries
Neither produce a raw material nor make a product.
Instead they provide services to other people and industries.
Tertiary industries can include doctors, dentists, refuse collection and banks.
Quaternary Industries
Involve the use of high tech industries.
People who work for these companies are often highly qualified within their field of work.
Research and development companies are the most common types of businesses in this sector.
