Why might the ancient Egyptians have wanted to control the Nile's flood waters? PLS HELP

Adescription of at least one real life problem that has to be solved or decision that has to be made using good judgment, and obstacles encountered while making the decision(s) or solving the problem(s) (again, these can be real examples or imagined, but they should clearly illustrate your understanding of the obstacles described.) at least three key terms from the lesson used in your example(s):

Why might polar bears become extinct

And fast (use two examples) some historians say that the attacks by the abolitionist actually strengthened sectionalism in the south instead of weakening it. how might the abolitionist have been contributing to the tension arising over slavery? provide two specific example of the southern response to the aboltitonist attacks.