It would be between increased population, a steady stream of agricultural production, and technological advancements. As for the most important one of those three; that would be agricultural production.
True, because presidents can veto.
During the neolithic revolution, the need of getting a reliable source out of the resources around was of great importance. Since the resources are scarce, an organization of how to harness the resources was a challenge. This was how the power play of politics and division emerged during that era.
The correct answer is (d.) a place where Muslim philosophers met to contemplate life. The House of Wisdom was actually a major intellectual center for well-known scholars during the Golden Age that made many remarkable contributions to the diverse fields.
In battleground states, they will be more competitive. therefore, people of both parties will feel inclined to run and parties will put more money into flipping them or winning campaigns to show their strength.