1. The silk road latrading route lasted for centuries and streactched 4.000 miles from china to= my answer the eastern mediterannean sea4. what is one acheivment of the tang dinasty?

the compleation of the grand canal.
the buliding of the taj mahal and great structures.***
the granting of more power to landowners.
the islotaion of china from the rest of the world.

1. Check this, including the map, to be sure of your answer:

https://en.wikipedia.org/wiki/Silk_Road

4. Incorrect. Read lots:
https://www.britannica.com/topic/Tang-dynasty
https://en.wikipedia.org/wiki/Tang_dynasty
https://www.chinahighlights.com/travelguide/china-history/the-tang-dynasty.htm

The correct answer is:

- The completion of the Grand Canal.

To arrive at this answer, you can use various research sources such as history books, articles, or reliable online sources. The Grand Canal was indeed one of the significant achievements of the Tang Dynasty in China. It was a massive waterway system that connected the Yellow River in the north to the Yangtze River in the south. This canal provided an essential transportation route for goods, which helped promote economic growth and facilitated cultural exchange within the dynasty.