What do you mean by represented?
I believe it's the Appalachian Mtns.
The correct answer for the question that is presented above is this one: "b.Interchangeable parts were identical parts that could be exchanged for one another in manufacturing of goods. "
Here are the following choices:
a.Interchangeable parts were designed for the construction of mills and factories that used various resources to power equipment.
<span>b.Interchangeable parts were identical parts that could be exchanged for one another in manufacturing of goods. </span>
c.Interchangeable parts were goods that were custom-made by hand using the expertise of skilled workers.
