Which was an effect of the black death in medieval europe? it closed down all trade routes to asia. it caused the great schism in the roman catholic church. it led to social upheaval and end the social order of the manor system. it led to the crusades and the spread of new ideas.

It led to the Crusades and the spread of new ideas.

Explanation:

It led to social upheaval and helped end the social order of the manor system.

Explanation:

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explanation:

the correct answer is "c: merchants" and "e. soldiers".

the song dynasty was known as the first government in the world to introduce paper currency. it was also the first chinese government which established a permanent standing navy. finally, the first compass was introduced during this period of government.

all of these innovations heavily affected commerce in a positive way. printed money dynamize commerce within the borders of the empire due to an easier way to quantify value during the trade. the introduction of the compass trade routes to be faster. finally, the introduction of a standing navy regulate trade routes.

regarding military affairs, gunpowder was created during this period. this was a tremendous improvement that was widely utilized by the military in order to innovate in the manufacturing of weapons.