ECONOMIC ACTIVITIES
ECONOMIC SECTORS
The levels increase based on distance from the natural environment
Primary Sector Secondary Sector Tertiary Sector Quaternary Sector
PRIMARY SECTOR This sector extracts or harvests
materials from the earth. Involves the production of raw materials.
3% of the US population is in this sector today, compared to 67% in the mid-19th Century.
SECONDARY SECTOR
The secondary sector involves the processing of raw materials into finished products.
TERTIARY SECTOR
Service Industries Interactions among people
and businesses
QUATERNARY SECTOR
This sector is concerned with intellectual activities
