Explanation:
Iron and steel is the basic industry and serves as the backbone of our economic development. It provides raw materials, all types of machinery to run other industries. For example, machine, engineering industries.
b. The industry needs to have access to good transportation facility .
c. Further, it has to be strategically located and be set up near the sources of raw material. For instance, Iron and Steel Plants at Jamshedpur (Jharkhand), Rourkela (Orissa), Bhilai (Chhattisgarh) and Durgapur (West Bengal) have been set up near the sources of raw material i.e., Iron ore.
d. Also to ensure regular water supply, For example TISCO gets water supply from Kharkai and Subarnarekha rivers. Piitusburgh is located near great lakes.
e. Further, location of the industry is also determined by the availability of cheap labour.
f. It is important to note that a location of an industry may undergo a change depending on its need and requirement.
g. The industry also needs to be in close proximity to the railway station, to the iron ore, manganese and coal deposits .
h. Further, Steel plants must be located in close proximity to markets, as steel is the backbone and is required by many other industries from needles oil pins, to autos, ships, etc.
It will also reduce its cost of production and quicker transportation of the steel to the market.
Five industries( Iron and steel that developed after 1970 as you have not specified which industries in particular. So in consonance with the first part of the query refer below) were in:
South Korea
China
Brazil
Germany
Alabama ( USA)
