1. Which of the following was in innovation or invention of the tang and song dynaties?
A. magnetic compass for navigation
B. glass lens or telescopes
C. waterwheel for irrigation
D. steel plow for farming
2. Which was the most imprtant effect of trade along the silk road?
A. more societies began using money instead of the barter system
B. inventions and ideas were exchanged along with material goods
C. silk and porcelain were traded freely with foreign nations
D. the technique of papermaking spread from china to europe
3. which best describes an influence of kublai khan's reign in china?
A. Isam was introduction into central asia
B. buddism expanded into the middle east
C. the silk road were extended into europe
D. chinese culture disappointed from northern china
