Why has steel production suffered in West Virginia in the 20th century? Please help i need this answer fast.

What was the most explosive issue facing the united states prior to the start of the civil war?

How and why did the policies of the federal and state governments toward native american people change between 1790 and the 1850s. what were the reaction of native american people to these policies?

What of the following is a resource within the workplace that will you find information on safety and health issues