One road that was the color of silk. 

A network of roads used for trading.

A road that only silk was traded on.

The name of the first road in Asia. 

How to make cotton.

How to make fabric.

How to grow silk worms.

How to make silk.

China was concerned the silk worm population would go down too fast. 

Chinese were afraid their people would leave China. 

People would have to come to China and trade. (more money)

The Chinese thought people would be upset by the cruelty to animals.

Wild fires would break out.

bandits

lack of water

bad weather

for company

it was cheaper

for safety

it was a law