Question

why is Iron the most important metal

Answer 1

The Importance of Iron in Our Daily Life. Iron is the most usedmetal in our lives. Iron is indeed an incredibly useful substance and we use it abundantly because it extremely strong than copper or wood and less brittle when compared to strong. ... The only real problem about Iron is rust which is controllable.
hope this helps

Answer 2

all the industrial sector all the economic of a certain country directly or indirectly depend upon iron ...
so I think it is