QUESTION 2 & 3
Marco Polo discovered many things here is a list of a few:
He found out that china already had paper.
He bought back paper money.
Road improvement
Black coal
Asbestos and made it into fireproof fabric.
Marco Polo affected the renesonse by going to china and bringing back all these wonderful items.
So many people did not believe him.
But today we know that most of what he said was true.
