Answer:
Ancient Egyptians welcomed them, they brought valuable sediment down from the mountains that kept the farmland fertile.
In modern times the Aswan dam was built to control flooding.
I think it's false
( I'm not super sure about it but I think it's false)
To portrayed american life in a way that forced Americans to reflect upon modern isolation, confusion, and family conflict.
Some of the diseases were new and treatments were ineffective. Malaria was deadly to many new colonists, especially in the Southern colonies. Of newly arrived men, over one-fourth of the Anglican missionaries died within five years of their arrival in the Carolinas. Mortality was high for infants and small children, especially for diphtheria, small pox, yellow fever, and malaria.
It could be both but if the context is for building civilizations it would be rivers but resources for armies