Please help history question

What was the overall impact of eli whitneys introduction of interchangeable parts?

70 ! to reinforce your understanding of the early days of the great depression, take the perspective of president herbert hoover. from his perspective, write three to five sentences that develop and expand on the following topic sentence: i believe the best way to end the great depression is . .

What primary benefit did theodore roosevelt’s see in digging a canal through panama?