The balance of power can be maintained through <em>alliances. </em>This system allows the countries to plan and agree or disagree with decisions that concern each other. This way, a country that likes to emerge as a super power will be prevented itself from doing so.
Eastern Asia is most densely populated. The darker the color the more dense the area is, and Eastern Asia is the darkest area on the map.
Answer:
They were all on a river, for trade, transportation, and drinking water.
Explanation:
