How did andrew carnegie gain control of the steel industry? a. by giving away his money b. by becoming a partner of edwin drake c. by buying all the other steel mills d. by practicing vertical consolidation

c. by buying all the other steel mills Explanation:

The Bessemer Process

This is a process known as horizontal integration.

Andrew Carnegie also created a vertical combination, an idea first implemented by Gustavus Swift. He bought railroad companies and iron mines. If he owned the rails and the mines, he could reduce his costs and produce cheaper steel.

b) the confederacy had to pay all union war expenses.

the answer that best explains what happened to george washington at fort necessity, pennsylvania is : washington was attacked by the french but was able to negotiate with them to peacefully end fighting. the battle took place on july 3, 1754. the battle is considered as being the start of the french and indian war.