What are the various activities are undertaken in the primary sector, secondary sector, and tertiary sector?

the different sectors of employment are :

1. Primary activities are directly dependent on the environment as these refer to the utilization of earth’s resources such as land, water, vegetation, building materials, and minerals. It, thus includes hunting and gathering, pastoral activities, fishing, forestry, agriculture, and mining and quarrying.

People engaged in primary activities are called red-collar workers due to the outdoor nature of their work.

2. Secondary activities add value to natural resources by transforming raw materials into valuable products. Secondary activities, therefore, are concerned with manufacturing, processing, and construction (infrastructure) industries.

People engaged in secondary activities are called blue collar workers.

3. Tertiary activities include both production and exchange. The production involves the ‘provision’ of services that are ‘consumed. Exchange involves trade, transport and communication facilities that are used to overcome distance.