Question

what was the various activities undertaken in the primary sector, secondary sector and teritiary sector?

Answer 1

primary sector includes fishing, forestry, animal husbandry, and other agriculture activities
secondary sector includes manufacturing
teritory sector includes transport industry, driving tractor and etc...
hope it helps you...

Answer 2

Let me here give you an example
First the wheat is grown and then the farmer give it to the supplier. This is the role of Primary Sector.
Then this wheat is processed and manufacturee to form Biscuits. This is the role of Secondary Sector.
The other facilities like providing transportation, loan, advertisement is taken care by the Tertiary Sector.

Hope it helps.