The portion of the economy concerned with the direct extraction of materials from Earth's surface, generally through agriculture, although sometimes by mining, fishing, and forestry.

• primary sector

• secondary sector

• tertiary sector

The portion of the economy concerned with manufacturing goods using the raw materials provided by the primary sector

• primary sector

• secondary sector

• tertiary sector

provides services to consumers and other sectors of industry

• primary sector

• secondary sector

• tertiary sector

leisure centre

• primary sector

• secondary sector

• tertiary sector

fisherman

• primary sector

• secondary sector

• tertiary sector

blacksmith

• primary sector

• secondary sector

• tertiary sector

bus driver

• primary sector

• secondary sector

• tertiary sector

textile factory

• primary sector

• secondary sector

• tertiary sector

clothes manufacturer

• primary sector

• secondary sector

• tertiary sector

when there is a decline in the importance of the secondary sector of the country

• industrialisation

• de-industrialisation