The hidden passengers onboard european ships where rats. they spread plague, and also ate most of the ships food for, which led to death of starvation for the sailors and passengers.
Im not 100% about the answer, but i think its Starvation.
Without resources or wealth they couldnt obtain food.
-Seth
The answer is d conserve supplies so that farms could support soldiers
Answer:
The working conditions were awful.
it was hard to breathe. nevertheless, businessmen didn't care
people were mad so they formed unions;
Explanation: