I need help with all of these questions

I couldn't really find the direct answers but I did a search so I just took my best guess I'm sorry

1. A

2.D

3.C

Explanation:

1. The Silk Road was important because it helped to generate trade and commerce between a number of different kingdoms and empires. This helped for ideas, culture, inventions, and unique products to spread across much of the settled world.

2. Trade between Europe and Asia increased.

3. Ghengis Khan and his Mongol armies rose to power at the end of the twelfth century...The vast Mongol empire he created stretched from China to Europe, across which the Silk Routes functioned as efficient lines of communication as well as trade. 

economic

answer; code of federal regulations;