They use Economics to Explain.
A. Labor to grow cash crops and the Indians were poor workers
Geography has a profound effect on where civilizations settle. The earliest civilizations resided within river valleys, and used the area around them to create opportunities to benefit their growth. Mountains, rivers, and plateaus provided natural defenses, at the cost of movement and trade.
Answer: The Congress we know today was created after the failure of a government under the Articles of Confederation, which left most powers to the states.
Explanation: From the beginning, the two bodies of Congress were meant to be different, yet interdependent.
