We can classify the adults around who work for livelihood on the following basis

(a)Classification on the basis of nature of work

(i) Primary Sector : Under the primary sector, all those economic activities which are done by the use of natural resources. They are kept in the primary sector, such as agricultural work, mining work, fishing etc.

(ii)Secondary Sector : Under the secondary sector, various useful items are manufactured by using various products obtained from the primary sector, such as making cloth from cotton, making sugar from sugarcane, etc.

(iii)Tertiary Sector : No goods are manufactured in the tertiary sector but services are provided. These services play an important role in the development of the primary and secondary sector. Under this, banking, insurance, railway communication and transport etc. are included.

(b)Classification on the basis of conditions of employment : On the basis of what are the conditions of employment, we can divide it into two parts i.e. Organized Sector and Unorganized Sector.

(i) Organized Sector : Those activities come in the organized sector in which the period of employment is regular and they have to obey the government rules.

(ii)Unorganized Sector : The unorganized sector is out of government control. In this, the period of employment and rules, bye-laws etc. are not fixed.

(c)Classification on the basis of ownership of industries : On the basis of who owns different industries, they can be classified into public and private industries. On the basis of above we can list the people around us in this way:

(i) Farmers : come under primary sector

(ii) Government school teachers : Tertiary, organized, come in the public sector

(iii) Lawyers : come in tertiary, organized, public sector

(iv)Tailors : Tertiary, unorganized, come in public sector

(v) Washermen : come under tertiary, unorganized, private sector

(vi)Postmen : Tertiary, organized, come in public sector

(vii)Workers : come in tertiary, organized, private sector

(viii)Clerk : Tertiary, Organized, comes in public sector