industries

THE USA; 
The rise of the steel industry in the united states drove america's  growth as a world economic power.Although iron works had been established in the north american colonies shortly after european settelment began,it wasn't until the 19th century when technological advances decerease the cost and increased the quality that steel manufacturing became a dominant industry.
With the abundant iron ore deposits around lake superior the rich coal veins of pennsylvania and the easy access to cheap water transportation routes on the great lakes the midwest became the centre of american heavy industry.In years after the civil war the  american steel industry grew with astonishing speed as th nation's economy expanded to becomethe largest in the world.
MAJOR AREAS:
pittsburgh regions.It is the iron and steel capital of the world.
lake michigan region here chicago is the centre of industries.
briminham region,for this region iron ore is imported from  venezuela.
the mid atlantic region.For this region ore is imported from venezuela,brazil,chile,spain,liberia, and north africa.
the western states.Here the main the industry is shipbuilding.....