How did the inventions and innovations of the mid-19th century encourage various regions to specialize in certain industries?

Answer: Steel plow, Mechanical reaper would have caused people in mid-west to grow corn or wheat crops. The steamboats would have given southerners opportunity to ship their cotton or sugar up-river, the cotton gin, and steel plow. The north east would have used sewing machines, textile mills and interchangeable parts would have lead people to promote factory work.