Answer: Religious intolerance, expanded merchandise.
Step-by-step explanation:
The crusades brought even more intolerance between Islam and Catholicism. This is one of the negative trends that arose as a result of the wars. Not infrequently, upon their return to Europe, the Crusaders vented their anger against the Jews.
Positive reflection is introducing Europeans to new goods that have entered the market. New types of perfumes, textiles, and luxury goods were now available in European markets.