what is the tertiary sector of an of industry
The economy of a modern world can be discussed in terms of three sectors: primary, secondary and tertiary. The primary sector is the part of the economy generated by extracting raw materials directly from the Earth for consumption or sale. The secondary sector is the part of the economy that transforms the raw materials into goods for sale or consumption. The tertiary sector is the part of the economy that involves the sale or trade of services instead of goods.