Identify four cities that the people living in Aden could have traded with.

economic competition is inefficient and wasteful.good luck

explanation:

c it says nothing about connecting those 2 seas.

the second significant cause of the great migration was the desire of black southerners to escape segregation, known euphemistically as jim crow. rural african american southerners believed that segregation - and racism and prejudice against blacks - was significantly less intense in the north.

this is a good question! i'll do some research and come back when i have the answer!