1. Secondary economic activity:
- Secondary activities are those that change raw materials into usable products through processing and manufacturing.
- Bakeries that make flour into bread and factories that change metals and plastics into vehicles are examples of secondary activities.
2. Tertiary economic activity:
- Tertiary economic activities are those that provide essential services and support the industries to function. Often it is called service industries.
- It includes the transportation, finance, utilities, education, housing, medical and other services
