As the country develops people stray away from the primary, secondary sectors and later tertiary. Industry classification systems depends upon the government . There are commonly divided into three sectors such as agriculture, manufacturing and services. The primary sector deals with the agriculture, raw material extraction and other. Secondary sector is based on the manufacturing. Tertiary sector is based on the service production and the other sector are based on the research and development.
There is the revolution for the industry for the development of factories which can be produced in the large scale with consequent changes in society. In case of industry the most important part is societies and nations. The industry gives more employment to the people. There are many industries that are located mostly at remote areas because the pollution that are obtained in the industry wont effect the people in the city. So there are necessary precautions taken by the industries as well the government to overcome from the disadvantages caused by the industries.