Answer:
Social contracts can be explicit, such as laws, or implicit, such as raising one's hand in class to speak. The U.S. Constitution is often cited as an explicit example of part of America's social contract. It sets out what the government can and cannot do.
Probably about the civil war and stuff
Answer:
Trade was also important to the economies of ancient civilizations. When Egyptians first settled along the Nile, the resources of the river supplied them with what they needed to survive. Grain grew quickly in the healthy soil of the Nile, so the people had plenty to eat.
Explanation:
