Why have locks been created between the great lakes and the st. lawrence river?
a elevation between the areas is different
b to slow the shipping that goes through them
c to produce hydroelectricity
d to prevent flooding

religion was the center of there society they practiced human sacrifices and which they believed kept there god strong and that he would keep bad guys away hope this

they bring people together to achieve control of the government

basically choosinng what sets in   congress and presdicny this is to keepthe antion hole and so it can last because wiht out authority it wouldnt last a week