Respuesta :
Answer:
I don't understand this question
Explanation:
please make it clearer for me
Answer: 4. selling crops for supply's, maybe cause some items that are popular in a different place is inside a place that is low in that resource
5. it helped both cities that where trading getting what they need to grow there economy
6. maybe like the silk road that is a good example it was a good route until it was shut down
Explanation:
PLS MARK BRAINLIEST