Answer: He influenced noninterference by the United States in the affairs of other nations.
<span>Public safety
Protecting the public against fire, explosion etc is the primary duty. It is a public matter because even though fires are often started privately, they can spread and damage property and endanger lives of the surrounding community. Very often they get out of control much faster than a private party would be able to put them out.</span>
Probably B because A and C and D are wrong
Answer: A
Explanation: rivers were very important during this time: the nile, tigris, yellow river, etc
More food= more people, more people means you need more food, which means you get people to make more food, which attracts more people, etc, etc.