<span>The main way in which their settlements differed was that the Chavin settled the highlands while the Nazca settled the valleys, which led to different farming techniques. </span>
A. War with the Etruscans.
The main reason is that t<span>he Union had strong leadership in the West.
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<span>cause american established a sphere of influence instead of creating the Open Door policy, american only become part of China's problems. It may have made the Chinese people resent us more. By establishing the Open Door policy, we soothed Chinese concerns AND secured our economical strength in China because we did not have to actively compete with other spheres of influence.</span>