A large area of tide water
Answer:D.) They encouraged imperial powers to become more tolerant of indigenous people religions.
Explanation:
The Columbian Exchange was when the old world (Europe) trade with the new world (America) items. for example: Old World had horses. So if Europe never came to America... we wouldn't have them. Or new world had tomatoes. If Europe didn't have tomatoes... We wouldn't have pizza or delicious Italian goods.
I think it's Africa. google it
Isolationism
because they are isolating themselves from the rest of the world. they wanted to focus on protecting themselves from the north so a takeover from the Mongols would never happen again. thus they stopped making ships and cut themselves off from everyone else.
