4. What led directly to Arabs populating more of the desert in the first millennium B. C?* (10 Points)
attacks by invading armies of Persians
the domestication of the camel
the flooding of the Nile River
war with Greece

7. how did the early egyptians use the flooding of the nile river to their advantage? they diverted the water to flood their enemy's lands and destroy their crops. they created an easier way to travel to the mediterranean sea and the indian ocean. they established a new water-based athletic event for the ancient olympics in greece. they devised an innovative irrigation system, which created a surplus of food.