What was the main reason that Carnegie invested in the Frick Coke Company?
He wanted to invest in new technology.
He thought he could help the company become profitable.
He wanted to make sure he could always get fuel for his steel plant.
He was interested in the coal business.

The term “iron curtain” was based on an actual iron curtain that german theaters used to separate the stage from the audience in case of a fire. who or what did the “iron curtain” of the cold war separate? democratic nations from communist nations the soviet union from its allies the united states from europe europe from asia