Secondary industry (or manufacturing industry): This industry involves converting raw materials into finished products, such as manufacturing, construction, and assembling.
Tertiary industry (or service industry): This industry provides services to consumers and businesses, such as retail, healthcare, education, finance, and transportation.
Quaternary industry (or knowledge industry): This industry focuses on the creation, dissemination, and use of knowledge, such as research and development, information technology, and consultancy.
Quinary industry (or creative industry): This industry revolves around creativity and innovation, such as arts, entertainment, and media.