The United States wanted to remain neutral during the war.

Which of the following factors led to America joining the war?

What year did Woodrow Wilson ask Congress to join World War 1?

Which countries were part of the Central Powers?

Which countries were part of the Allied Powers?

At the end of the war, Germany agreed to an __________________________ with the Allies.

Woodrow Wilson's ____________________ Points was used to help create the Treaty of Versailles.

The Treaty of Versailles included the creation of an international peacekeeping organization called the _______________________________________.

Who had the first moving assembly line?

People usually specialize in a job a skill they are good at or like to do.

When people specialize they can produce everything they want or need.

Because people cannot produce all the good or services they consume, they need to trade with others to fulfill their needs and wants.

When individuals, regions, or countries specialize, they must trade with others for what they do not produce.

Specialization and division of labor usually decreases the productivity of workers and businesses.

When the production of a good or service is broken down into different steps with different workers performing each step, it is called ___________.