Twentieth-century conflicts such as world war i and world war ii were major historical turning points because they: a. created resentments between countries that fueled future conflicts. b. marked the end of nationalism as an international political movement. c. led countries to isolate themselves from the international community. d. convinced world leaders that protecting human rights was impossible.

created resentments between countries that fueled future conflicts

Explanation:

it's no easy i swear it's hard

for the 2 countries u can do china and america because america has a democratic government while china has a communist government.

a democracy is a government run by the people either by directly voting or indirectly by electing representatives. an oligarchy is a government run by a few or a small group of people. a democracy and oligarchy are similar because both in an oligarchy and an indirect democracy, a small group of induvial determine the laws for a large group of people they are different because in an oligarchy it is easier to control and they do not have to answer to a large number of people in the country, unlike a democracy where they do have to answer to a large number of people an county that is a democracy would be the united states. a country that is an oligarchy would be the china.