Question

what is primary, secondary and tertiary sector?

Answer 1

primary sector is the sector involved in extraction, agriculture, gathering and mining of raw products.
secondary sector is the sector involved in purification of the raw substances and their production.
tertiary sector is the sector which provides support to the primary and secondary activities by transport, finance etc.

Answer 2

Primary sector :-

These Sector are directly dependent on environment as these refer to utilisation of earth's resources such as land, water, minerals etc.

Example :- Fishing, forestry, agriculture, mining and quarrying.

Secondary sector (Manufacturing sector ):-

Secondary sector add value to natural resources by transforming raw material into valuable products.

Example :- Industry

Tertiary sector (Service sector) :-

Tertiary sector include both production and exchange.The production involves the provision of services that are consumed.

Example :- Banking,communication transportation, teaching, nursing etc.