Question

geography of africa earliest human activity, demonstrating how important water sources were for the development of civilizations. • river civilization: ancient egypts sustained existence is attributed to the presence of the nile river, which supported life and agriculture. why is the nile river considered crucial for the survival of ancient civilizations? because it provided transportation routes because of its role in regulating the economy because it was a major source of water because it served as a natural barrier against invaders

Explanation:

The text states that Ancient Egypt's sustained existence is attributed to the Nile River, which supported life and agriculture. Supporting life and agriculture implies providing water (for drinking, irrigation, etc.). The other options: transportation routes, regulating the economy, or being a natural barrier aren't directly stated as the main reason for survival in the given context. So the correct option is the one about being a major source of water.

Answer:

C. because it was a major source of water (assuming the third option is labeled C; if the original labels are different, adjust the identifier but keep the text. Based on the options, the third option text is "because it was a major source of water" which matches the explanation from the provided text about the Nile supporting life and agriculture via water provision.)