Answer:
1. bloc - a united group of countries with common interests, goals, or aims
2. capitalism - an economic system based on private ownership and competition motivated by profit
3. communism - a classless society where control of wealth and property belongs to the state
4. republic - a form of government in which representatives are elected to exercise power for citizens
Explanation:
The best examples for blocs are NATO and Warsaw pact, created after WW2.
Most of the countries today are using capitalism as a system, including United States, Germany, Britain, etc.
The best examples for this type society were Soviet Union and today China and Cuba.
This is a form of government in most of the countries today, including France, Germany, Italy...