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AP Modern World History Practice Quiz: Causation in Global Conflict

Written by AP Content Team, Verified for 2026 AP Exams, Last updated: May 2026

Test your understanding with short quizzes. This quiz has 7 questions to check your progress.

Question 1 of 7

The decline of which two land-based empires created a power vacuum and heightened ethnic tensions in the Balkans, serving as a major underlying cause for the outbreak of World War I?

All Questions (7)

The decline of which two land-based empires created a power vacuum and heightened ethnic tensions in the Balkans, serving as a major underlying cause for the outbreak of World War I?

A) The British and French Empires

B) The Spanish and Portuguese Empires

C) The Ottoman and Austro-Hungarian Empires

D) The Russian and Qing Empires

Correct Answer: C

Based on KC-6.2.I (the decline of empires), the weakening of the Ottoman and Austro-Hungarian Empires fueled nationalist aspirations and imperial competition in the Balkans. This instability was a significant long-term cause of World War I.

Which of the following best explains how rapid advances in science and technology (KC-6.1) most significantly changed the nature of global conflict in the period after 1900?

A) New communication methods made diplomatic solutions more common than warfare.

B) Industrialized warfare led to unprecedented levels of casualties and civilian involvement.

C) The development of atomic energy made conventional warfare obsolete.

D) Improved agricultural technology eliminated resource competition as a cause for war.

Correct Answer: B

Advances in science and technology, such as the machine gun, poison gas, tanks, and aircraft, led to the concept of 'total war.' This dramatically increased the scale of destruction and blurred the lines between combatants and civilians, resulting in casualty figures far exceeding those of previous eras.

The Russian and Mexican Revolutions are cited as examples of major political and social challenges (KC-6.2.II) that led to conflict. A key similarity in the causation of both revolutions was the desire to address:

A) The peaceful transition of power in a democratic system.

B) Widespread discontent over unequal land distribution and social hierarchy.

C) The threat of foreign religious missionaries.

D) The expansion of overseas colonial territories.

Correct Answer: B

Both the Russian Revolution (driven by peasants and workers against the aristocracy) and the Mexican Revolution (with figures like Zapata demanding 'Land and Liberty') were fueled by deep-seated anger over land ownership inequality and rigid social structures, representing a fundamental challenge to the existing political and social order.

A historian evaluating the relative significance of the causes of 20th-century global conflicts would most likely argue that:

A) Technological advancements were the sole cause, as conflicts were impossible before the invention of the machine gun.

B) The decline of empires was a precondition that created the political instability and nationalist rivalries which new ideologies and technologies then inflamed.

C) The Mexican Revolution was more significant than the Communist Revolution in shaping the course of the Cold War.

D) Global conflicts were primarily a result of social challenges, with political and technological factors playing a minor role.

Correct Answer: B

This question requires an evaluation of the relative significance of causes. The collapse of old imperial orders (KC-6.2.I) created the foundational instability and power vacuums. This environment allowed new political challenges like communism (KC-6.2.II) to take root and new technologies (KC-6.1) to have a devastating impact, making imperial decline a crucial precondition for the conflicts that followed.

The rise of communism following the Russian Revolution represented a global challenge to the existing political and social order (KC-6.2) primarily because it:

A) Promoted a system of free-market capitalism to compete with Western powers.

B) Advocated for the overthrow of capitalist and imperialist systems through international worker solidarity.

C) Sought to restore traditional monarchies and land-based empires.

D) Encouraged political isolationism and disengagement from global affairs.

Correct Answer: B

The core of communist ideology was a direct challenge to the dominant global systems of capitalism and imperialism. It called for a worldwide revolution of the proletariat, which directly threatened the political and economic interests of the major world powers and became a central cause of the Cold War.

Which statement best synthesizes the relationship between the decline of empires (KC-6.2.I) and political challenges (KC-6.2.II) as causes of global conflict?

A) Successful communist revolutions in the 20th century prevented the re-emergence of any form of imperial control.

B) The strain of global conflicts like World War I accelerated the decline of empires like Tsarist Russia, creating the conditions for revolutionary political movements to seize power.

C) The Mexican Revolution was a direct attempt to restore the Spanish Empire in the Americas.

D) The decline of empires was exclusively caused by internal political revolutions.

Correct Answer: B

This demonstrates a complex causal relationship. The pressures of World War I fatally weakened the Tsarist regime in Russia (an example of imperial decline), which in turn created the power vacuum and popular discontent that allowed the Bolsheviks to launch their communist revolution (a political challenge). This shows how these two causes were interconnected and mutually reinforcing.

According to the provided key concepts, which of the following is a primary example of a 'global challenge to political and social order' (KC-6.2) that led to major conflict in the early 20th century?

A) The establishment of the League of Nations

B) The signing of the Treaty of Versailles

C) The Communist Revolution in Russia

D) The Scramble for Africa

Correct Answer: C

The content explicitly names the Communist Revolution (KC-6.2.II) as a major political and social challenge. It fundamentally altered Russia's government and social structure and introduced a new ideology that would be a source of global conflict for the rest of the century.