Question

answer it plz . very urgent

Answer 1

becoz with the help of iron and coal thre other materials are made like steel and carbon steel

Answer 2

Iron is called the backbone of Steel Industry because:

It is the raw material for numerous other industries.

It is used to make machines for all the industries.

Iron is required for the development of infrastructure like bridges and also for the manufacturing of transport modes like trains and ships etc.

Iron is exported to many countries from India like South Korea, Japan etc. which leads to increase in foreign exchange and GDP of India.