The major innovative technique that allowed Henry Ford to produce an automobile that could be manufactured and sold at a reasonable cost was the assembly line, which was used in factories and allowed each employee to focus purely on a single task, instead of multiple ones, which increased efficiency.
In a RV or maybe a airplane hope this helps
Answer:
Firstly, what plague? Are we talking about the Bubonic plague?
Explanation:
1) By rats, Which served as the vector which spread the disease.
2) Lack of hygiene and them throwing their sewage and was out of their window into the street.
(2).A.to have more economic opportunities