A. how long was the silk road? b. what was the silk road made of?
c. when did people start using silk road?

a. 10,000 kilometers long

b. natural features

c. 2nd century

please mark me as brainiest  

A: about 4,000 miles

B: Silk Road, also called Silk Route, ancient trade route, linking China with the West, that carried goods and ideas between the two great civilizations of Rome and China. Silk went westward, and wools, gold, and silver went east. China also received Nestorian Christianity and Buddhism (from India) via the Silk Road.

C: Established when the Han Dynasty in China officially opened trade with the West in 130 B.C., the Silk Road routes remained in use until 1453 A.D., when the Ottoman Empire boycotted trade with China and closed them.

Explanation:

i think the answer's are a) b) and c)

speed =5445/33=165 mpm