1) They had many slaves that can help them maintain the fields
2)Invention of cotton gin
3)good farmland
4)weather was ideal for farming
As ocean depth increases, so does density of the water. Salinity increases, while temperature decreases.
I think A)People had more time for face to face contact
Both of the nations are members of the g-20 major economies, organisation for economic co-operation and development and the united nations.