The River Valley civilizations that emerged on the Yellow River ( China ), the Indus River ( India ), the Nile River (Egypt ), and between the Tigris and Euphrates Rivers ( Mesopotamia ) made lasting contributions to civilizations.
Answer:
more than 4 million people
Explanation:
displaced because of conflict and hunger, including 2.2 million who have fled to neighboring countries since December 2013. Uganda hosts almost 800,000 refugees from South Sudan, down from more than 1 million in mid-2018.
