Answer: A "The Decrease in trade among societies
Explanation:
As cities grow, s does their impact on other societies. In order to grow more, cities need to trade materials they have abundance in for materials they don't
It was in europe with leaf erickson
<span>. It is very rare to have precipitation in either the tundra or deserts. They both experience extreme temperatures. Also, limited and no plant life can survive there.</span>