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.
So the type of democracy that engaged a door to door petition trying to get enough signatures for a proposal to be voted on by citizens is called Recall. I hope you are satisfied with my answer and feel free to ask for more if you have clarifications and questions.
Beacuse people during that time . Suffered from anxiety different chemical gases. harmful effect due to the lack of trained. And similarly the environment was also damaged which caused various effect
