Final answer:
Peasants left their farms for the cities due to more favorable labor terms, labor shortages after the plague, increased bargaining power in the countryside, and the job opportunities provided by factories during industrialization.
Step-by-step explanation:
During the time of the Black Death, many peasants left their farms for the cities due to a variety of reasons. Firstly, landlords in cities offered more favorable labor terms compared to the feudal estates, attracting workers who could replace the deceased. Additionally, cities experienced significant labor shortages after the plague, leading to a higher demand for workers. As a result, peasants who remained in the countryside were able to negotiate for better wages and rights. Lastly, the new factories built in cities during industrialization provided job opportunities that drew peasants away from their farms.