Borders, the countries want more land to represent them and have more power and if they have that then they also have more oil and water.
Answer:
Once the flood waters receded, what was it that they left behind :
b) black fertile called slit
Explanation:
As the demand for slaves grew, the Portuguese began to enter the interior of Africa to forcibly take captives; as other Europeans became involved in the slave trade, generally they remained on the coast and purchased captives from Africans who had transported them from the interior.
A. It encouraged expansion by granting low-cost land to settlers
They had the ability to take inventions created elsewhere and use them on a much bigger scale.