Why might a post classical civilization want to conquer Egypt and the Nile River Valley? It's fertile land provided the foundation for the first human civilizations and its access to the Persian Gulf and location between Europe, Asia, and Africa made it a center of trade.
All of Canada is above 40n.
That statement is false
Water indeed travel through layers of rocks and soil but they're permeable.It will get straight to the soil so it can be absorbed by the plants to create oxygen