What role did pastoral nomads play in overland trading exchanges​

Pastoral nomads formed communities. They moved from place to place and lived primarily from their domesticated animals like cattle, sheep, camels, or horses. They also played an important role in the exchanges along the Silk Road. ... Travelers depended on these nomads when they crossed the dangerous Silk Roads.

Explanation:

hope this helps

where is the picture of the graph or table?

definitely a for sure. ill see and update if i get the answer