After the Civil War what new business organizations develop

What from the columbian exchange had perhaps the biggest impact on the world?

How did the construction of the erie canal improve transportation in the united states in the 1820s? a. the canal connected the great lakes to the mississippi river. b. the canal connected the great lakes to the ohio river. c. the canal connected the atlantic and pacific oceans. d. the canal connected the great lakes to the atlantic ocean.

Can someone send me a conclusion for washington’s decision for the whiskey rebellion in rap (just his