Which of the following is most likely the reason that civilizations emerged in river valleys?

Early Civilizations needed water. They realized it was easier to be there, than to try to transport the water. They had no real techniques to drill for water. So, the put up camp next to the river, and the civilizations built up there.

He was an adventurer and writer who established a colony near roanoke island, in present day north coralina.

The adams apple, or laryngeal prominence. is a feature of the human neck, and is the lump or protrusion that is formed by the angle of the thyroid cartilage surrounding the larynx seen especially in males.