When the Framers created a bicameral legislature, they created a system of checks and balances within Congress by requiring a bill to be passed in both chambers.
The structures, powers, and functions of the House of Representatives and the Senate are different, and these differences can affect the policymaking process: for example, by accelerating it or slowing it down, and by the extent to which bipartisan collaboration is or is not facilitated.
No, I don't think it was right for America to do that. It cost so many lives
To work on their plantations, which were their main source of income. The plantations required a lot of really intensive and dangerous work that the colonists did not want to do themselves. They realized that African slaves provided cheap labor and could be easily replaced.
Eventually, the colonists just became over reliant on this slave labor, which is why they “needed” it.
The highest concentration of cities probably emerged along the two rivers the Tigris and the Euphrates rivers. This would have happened because of the large amount of fertile soil by those two rivers.