GEOGRAPHY
BUSINESS
ECONOMICS
HISTORY
PSYCHOLOGY
100

This country, the world’s largest by land area, spans 11 time zones and stretches across both Europe and Asia. Name the country.

Russia

100

This 19th-century entrepreneur, known as the “Commodore,” founded a company that controlled nearly 90% of the U.S. oil industry by the 1880s. Name him.

John D. Rockefeller

100

This economic principle describes the idea that “the next best alternative must be given up” whenever a choice is made. Name the concept.

Opportunity cost

100

The Treaty of Versailles, signed in 1919, officially ended this war and imposed heavy reparations on Germany. Name the war.

World War I

100

This psychologist is famous for his “hierarchy of needs,” which ranges from physiological needs at the bottom to self-actualization at the top. Name him.

Abraham Maslow

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