Question

All the three sectors of the economy are interdependent. explain their inter dependence taking iron ore as example

Answer 1

Economic activities , though grouped into three different categories, are highly interdependent. Raw materials are produced in Primary sector and processed into finished items in Secondary sector. Assistance is provided by Tertiary sector to these two sectors. 
Example- Iron ore is extracted in mining which is Primary activity, then it is transported to industries for making iron and steel in iron and steel plant, which is Secondary activity. Transportation and finance services are provided to these two sectors by Tertiary sector.