The document outlines the three main economic sectors - the primary, secondary, and tertiary sectors. The primary sector includes activities related to extraction of natural resources like agriculture, fishing, and mining. The secondary sector involves processing materials extracted in the primary sector, such as manufacturing steel from mined iron ore. The tertiary sector provides support services that facilitate the flow of goods and services between the primary and secondary sectors, including transportation, banking, insurance, and warehousing.

3. [1] PRIMARY SECTOR(AGRICULTURAL SECTOR)
• It includes all those economicactivities which
are connectedwith extraction and production
of natural resource.
• Eg: agriculture, fishing, mining,etc….

7. [2] SECONDARY SECTOR(INDUSTRIAL SECTOR)
• It includes all activities whichare concerned
with the processing materials whichhave
already been extracted at the primary stage,
• Eg: the mining ofironoreis primary industry
,but manufacture ofsteel is secondary
industry.

11. [3] TERTIARY SECTOR
(SERVICE SECTOR)
• It is concernedwith providing support
services to primary and secondary sector and
including transport, banking, insurance
,warehousing.etc…….
• It facilitates smooth flowof goods and
services in the economy.