Answer:
The invention of the assembly line and interchangeable parts decreased the need for labor, leading to high unemployment rates.
Explanation:
The "Industrial Revolution" changed many things in the society, especially the relationship between business and labor in the 1800s. At this time, many machines became available with the intention of mass production.
Businesses wanted to produce goods with lower labor cost. One example of this was the "Assembly Line" which <u>allowed the production of vehicles at a lower labor cost.</u> This allowed the companies to save money when it comes to paying labor workers for every vehicle. This means that the company didn't need to hire many labor workers, thus leading to a high unemployment rate.
Another example was the "Interchangeable Parts" which allowed the production of many goods by a labor worker (semi-skilled or, sometimes, unskilled) at a lower cost. This means that <u>the companies were able to produce goods (like weapon) with a small number of workers.</u>
