Describe the geography of Southern South America and how this geography influences economic activity?

Answer 1

Check the first two sites here:

http://www.google.com/#hl=en&expIds=17259,27556,27585&sugexp=ldymls&xhr=t&q=effect+of+geography+on+Argentina+and+Chile&cp=42&pf=p&sclient=psy&aq=f&aqi=&aql=&oq=effect+of+geography+on+Argentina+and+Chile&gs_rfai=&pbx=1&fp=c341562a61b59af3