2.8 Predictions for Unit 2 SAQs

AP World Unit 2 SAQ Practice Summary

This guide gives you practice short-answer style questions for every topic in AP World History Unit 2: Networks of Exchange. Each set asks you to identify a development and explain causes, effects, or comparisons across the Silk Roads, Indian Ocean, Mongol Empire, and trans-Saharan trade. Work each one before reading the sample responses so you can spot gaps in your knowledge.

Why This Matters for the AP World History Exam

Unit 2 makes up about 8 to 10 percent of the AP World History exam. Short-answer questions reward you for being specific: naming a real commodity, technology, or group, then explaining a clear cause or effect. The practice items here mirror that "identify and explain" structure, so they help you build the habit of giving precise evidence instead of vague generalizations.

These questions also build the historical thinking skills you will use across the whole exam: causation (why trade grew), continuity and change (how networks shifted over time), and comparison (how the Silk Roads, Indian Ocean, and trans-Saharan routes differed). Those same skills show up in multiple-choice questions and in the longer written responses too.

Key Takeaways

• Improved commercial practices and transportation technology expanded existing trade routes and grew powerful new trading cities across Afro-Eurasia.
• The Mongol Empire connected previously separated regions, which sped up trade, communication, and technological and cultural transfers.
• Indian Ocean trade depended on environmental knowledge like the monsoon winds, plus tools such as the compass, astrolabe, and larger ships.
• Trans-Saharan trade grew with technologies like the camel saddle and caravans, and the Mali Empire drew more people into Afro-Eurasian networks.
• Connectivity spread religions, languages, and innovations, and it also moved crops and pathogens, including the bubonic plague.
• When you answer, name a specific example first, then explain the cause, effect, or comparison clearly.

2.1 The Silk Roads

Respond to parts a, b, and c.

a) Identify ONE new commodity that became significant in Silk Road trade during the period 1200-1450.

b) Explain ONE way the Mongol period of stability affected trade along the Silk Roads.

c) Explain ONE way religious ideas spread along the Silk Roads during this period.

Sample responses:

a) Paper became more significant in Silk Road trade during this period. Chinese paper-making techniques spread westward, with production centers established in places like Samarkand. Wider paper availability helped spread knowledge and made administration easier across Eurasia.

b) The period of Mongol stability increased the volume and safety of trade along the Silk Roads. The Mongols protected merchants and ran communication systems across their territory, which lowered the risks and costs of trade. This encouraged more frequent and larger commercial exchanges.

c) Buddhism continued to spread along the Silk Roads as monks and merchants carried texts, artwork, and ideas. This led to new Buddhist schools and the adaptation of Buddhist practices to local cultures in East Asia.

2.2 The Mongol Empire

Respond to parts a, b, and c.

a) Identify ONE factor that contributed to Mongol expansion between 1200 and 1450.

b) Explain ONE way the Mongol Empire facilitated cultural exchange across Eurasia.

c) Explain ONE economic effect of Mongol rule on trade during this period.

Sample responses:

a) Mongol horsemanship and mounted archery contributed to their expansion. Skilled riders combined with powerful bows let Mongol forces move quickly and take control of large territories across Eurasia.

b) The Mongol Empire encouraged cultural exchange by running a communication network across their territory. This network allowed information, people, and goods to move quickly, which helped spread ideas and technologies between regions that had been more separated before. The transfer of Greco-Islamic medical knowledge to western Europe and the spread of new numbering systems are examples of this kind of exchange.

c) Mongol rule promoted long-distance trade by protecting merchants and drawing more people into their economies and trade networks. This stimulated commerce and helped move new products and technologies across Afro-Eurasia.

2.3 Exchange in the Indian Ocean

Respond to parts a, b, and c.

a) Identify ONE technological development that enhanced maritime trade in the Indian Ocean from 1200 to 1450.

b) Explain ONE way diasporic merchant communities affected Indian Ocean trade networks during this period.

c) Explain ONE reason why Zheng He's voyages were significant for Indian Ocean exchange.

Sample responses:

a) The compass enhanced maritime trade in the Indian Ocean. Along with the astrolabe and larger ship designs, it helped sailors navigate more reliably across long distances, which increased the volume and reach of trade.

b) Diasporic merchant communities shaped Indian Ocean trade by settling in port cities along the routes. Arab, Persian, Chinese, and Malay merchants introduced their own cultural traditions into local cultures, and local cultures influenced them in return. These communities built networks of trust and shared practices that made long-distance trade smoother.

c) Zheng He's voyages were significant because they expanded Chinese participation in maritime trade and diplomacy. These large state-sponsored expeditions established relations with many Indian Ocean polities and encouraged the exchange of goods and ideas across the region.

2.4 Trans-Saharan Trade Routes

Respond to parts a, b, and c.

a) Identify ONE technology that helped expand trans-Saharan trade between 1200 and 1450.

b) Explain ONE way trans-Saharan trade contributed to state building in West Africa during this period.

c) Explain ONE effect of trans-Saharan trade on West Africa.

Sample responses:

a) The camel saddle helped expand trans-Saharan trade. Along with caravans, it let merchants cross the desert more efficiently, which increased the volume of trade and extended the reach of the routes.

b) Trans-Saharan trade contributed to state building by giving rulers wealth and resources to centralize power. Control of trade routes and goods like gold let rulers fund armies, build capitals, and create administrations. The Mali Empire is a clear example: its control over trade helped make it a leading power in West Africa during this period.

c) Trans-Saharan trade drew West Africa more deeply into Afro-Eurasian trade and communication networks. As the Mali Empire expanded, more people were pulled into these economies, which increased the movement of goods, people, and ideas, including the spread of Islam through traveling merchants and scholars.

2.5 Cultural Effects of Trade

Respond to parts a, b, and c.

a) Identify ONE technological or scientific innovation that diffused across Afro-Eurasia from 1200 to 1450.

b) Explain ONE way networks of exchange spread a religious tradition during this period.

c) Explain ONE way intensified exchange networks affected travel and writing in this period.

Sample responses:

a) Gunpowder, which originated in China, diffused across Afro-Eurasia during this period. Paper from China spread in a similar way. Increased cross-cultural interactions helped move these innovations far from where they started.

b) Networks of exchange spread Islam into sub-Saharan Africa and Asia. As trade intensified, merchants and travelers carried religious ideas and practices along the routes, and local populations adopted and adapted them. The spread of Hinduism and Buddhism into Southeast Asia is another example of this kind of diffusion.

c) As exchange networks intensified, more travelers wrote about their journeys. Writers like Ibn Battuta, Marco Polo, and Margery Kempe recorded what they saw, which spread knowledge about distant regions and reflected how connected Afro-Eurasia had become.

2.6 Environmental Effects of Trade

Respond to parts a, b, and c.

a) Identify ONE crop that diffused along trade routes from 1200 to 1450.

b) Explain ONE way trade routes spread crops during this period.

c) Explain ONE way trade contributed to the spread of disease across Afro-Eurasia between 1200 and 1450.

Sample responses:

a) Bananas diffused in Africa during this period. New rice varieties spread in East Asia and citrus spread in the Mediterranean, showing how trade moved crops far from their origins.

b) Trade routes spread crops as merchants and travelers carried seeds and plants along established networks. This continued diffusion of crops changed agriculture in many regions by introducing foods that could grow in new environments.

c) Trade contributed to the spread of the bubonic plague across Afro-Eurasia. The increased connectivity of trade routes, including those linked through the Mongol Empire, helped move pathogens along with goods and people. The resulting epidemics caused major demographic and social changes across Eurasia.

2.7 Comparison in Trade from 1200-1450

Respond to parts a, b, and c.

a) Identify ONE similarity between two major trade networks during this period.

b) Explain ONE difference in how empires influenced trade across two networks.

c) Explain ONE way the goods or technologies in two major trade networks changed during this period.

Sample responses:

a) Both the Indian Ocean and Silk Road networks relied on intermediary merchant communities. In the Indian Ocean, Arab and Persian merchants acted as middlemen along the routes, helping bridge cultural and linguistic gaps. Specialized merchant communities supporting cross-cultural exchange appear across multiple networks.

b) Empires influenced trade differently across networks. On the Silk Roads, the Mongols built a large empire that directly controlled and protected the routes and drew many people into their trade networks. In West Africa, the Mali Empire expanded and pulled more people into trans-Saharan and wider Afro-Eurasian networks, but it grew around its own region rather than controlling a route that stretched across all of Eurasia.

c) The technologies that supported trade expanded across networks during this period. In the Indian Ocean, tools like the compass, astrolabe, and larger ships increased the volume and range of trade. On the trans-Saharan routes, the camel saddle and caravans played a similar role. Different networks improved in similar ways by building on existing transportation and commercial technology.

How to Use This on the AP World History Exam

Free Response

Practice the "identify then explain" pattern. For an identify part, name one specific thing and stop there. For an explain part, state your point and then add a sentence or two of reasoning that connects it to a cause, effect, or comparison.

Try answering each part out loud or on paper before you read the sample response. Then check whether your answer was specific enough and whether it actually explained, not just described.

Using Sources Effectively

Some short-answer questions on the real exam include a source like a map, chart, or short passage. Use the network names and examples from this unit as your evidence bank so you can quickly connect a source to a specific commodity, technology, religion, or trade city.

Common Trap

Watch the time period. Every prompt here is anchored to 1200-1450, so avoid evidence that belongs to later units, like maritime empires after 1450 or the Columbian Exchange.

Common Misconceptions

• The trade routes were not brand new in this period. The Silk Roads, Indian Ocean network, and trans-Saharan routes already existed; improved technology and commercial practices expanded their volume and reach.
• Trade networks moved more than luxury goods. They also spread religions, languages, technologies, crops, and diseases, so an answer about cultural or environmental effects can be just as strong as one about goods.
• The Mongols are usually associated with military expansion, but their lasting impact on this unit comes from connecting regions and enabling trade, communication, and technological and cultural transfers.
• Zheng He's voyages were state-sponsored expeditions tied to Ming maritime activity, not private merchant trips, and they expanded contact rather than starting Indian Ocean trade.
• "Identify" and "explain" are different jobs. Naming a commodity answers an identify part, but an explain part needs reasoning that shows how or why something happened.

Related AP World History Guides

• Unit 2 Overview: Networks of Exchange
• 2.1 The Silk Roads
• 2.3 Exchange in the Indian Ocean
• 2.4 Trans-Saharan Trade Routes
• 2.2 The Mongol Empire and the Making of the Modern World
• 2.7 Comparison in Trade from 1200-1450