Define popular sovereignty.
a. government powers are limited by the popularity of the elected leaders
b. government is intended only to serve and protect the people
c. government powers should be divided into three branches: executive, legislative, and judicial
d. government only exists and functions with the consent of the people being governed

. political or economical policy that isolates a country from participating in international relationships. it has been suggested that the united states participates in isolationism because of its lack of involvement in particular wars or alliances.

tenochtitlan (also spelled tenochtitlán), located on an island near the western shore of lake texcoco in central mexico, was the capital city and religious centre of the aztec civilization. the traditional founding date of the city was 1345 ce and it remained the most important aztec centre until its destruction at the hands of the conquering spanish led by hernán cortés in 1521 ce, which led to the final collapse of the aztec empire.