Answers:
The exchange introduced a wide range of new calorically rich staple crops to the Old World—namely potatoes, sweet potatoes, maize, and cassava. The primary benefit of the New World staples was that they could be grown in Old World climates that were unsuitable for the cultivation of Old World staples.
They fought with french because to master allowed them to do what ever they wanted like i just ran off with your b i t c h.
I think A, but I am not really sure.
A. Piedmont but I’m not sure so wait for someone else to answer
