Primary - produces raw materials from what nature has provided e.g. mining, agriculture, fishing, logging, extraction
Secondary - all workers involved in turning raw materials into finished or semi-finished products e.g. automotive, construction, manufacturing, food processing, crafts
Tertiary - providing a service for others e.g. hospitality, retail, healthcare, real estate, education
Quaternary - service industries that deal with processing information and knowledge e.g. media, financial services, education, real estate, robotics
Quinary - domestic services, many of which were once carried out by people within their own homes e.g. NGOs, nursing homes, fire service, police service, childcare