Answer:
high mortality rates from AIDS
Step-by-step explanation:
AIDS will be passed from the parents to the children. Due to the high amount of AIDS cases in Africa, Currently around 91% of AIDS positive children in the world were born in this region.
These AIDS caused around 1 million death per year in Africa. If we Combined it with other factors such as extreme poverty, lack of rainfall, other form of illness, and political instability that caused conflicts between group, it eventually caused some countries in Africa to have negative human population growth.