Primary Sector - harvest or extract raw materials and resources
directly from the earth.
Examples: farmers, miners, fishermen, loggers.
Secondary Sector - manufacture or process raw materials into something
useful and marketable, thus adding value.
Examples: Assembly line worker, baker, cook, artist.
Tertiary Sector - distribution of goods, connecting the producer
with the consumer through trade, provide personal and professional services.
Examples: Retail sales, waiter, bellhop, maid.
Quartenary Sector - information services; technological production,
processing, and dissemination; administration.
Examples: Accounting, research and development, manager, teacher.
Quinary Sector - highest level decision makers, CEOs, movers and
shakers, the brains of the operation, the headquarters.
Examples: The head people in a corporation, a subsidiary, or other institution.