major centers of commerce
Explanation: steamboats were known for transporting goods and also moving people around, commerce means transportation of goods and large scale of them
a
Explanation: major centers of commerce
1. darius the great persia
2. piankhi nubia
3. ezana aksum
4. nebuchadnezzar babylonia
5. shalmaneser iii assyria
postive making stock not fall
negative scams and currpurt buisnesss practices