Answer: Trade increase, whilst Europeans also brought back knowledge about plants, irrigation and the breeding of animals. Western Europeans brought back many goods, such as lemons, apricots, sugar, silk and cotton and spices used in cooking
Trade increased because of all the luxury goods and trade gave the middle classes a way to make money. As a result the economy became popular and stronger and as a result they had more cities.
The Christian organization that placed an emphasis on communal living and self-sacrifice is : D. children of God they do a lot of charity to help other people relieve their suffering