One reason for the development of an early civilization in the tigris euphrates river valleys<span> was that. periodic flooding left rich soil which was ideal for farming</span>
I dont know all the answers but i know one and its
<h2>
B</h2>
Answer:
they traded with wealthy countries and cities
Explanation:the more they trade with wealthy cities the more economics/cash they get and the more they will continue to grow
The South and South Asian nations rejected both the U.S. and U.S.S.R policies of expanding the Cold War
