B:American contributions to the columbian exchange
Answer:implied powers are necessary to carry out expressed powers. Why has the power to regulate interstate commerce become such an important power of Congress? The definition of interstate commerce has expanded to give Congress authority over virtually everything that crosses state lines.
<span>The city became a trap for some former farmers because they sold all that they had to move there, then became economically dependent on the factory with no money to return home.</span><span>. It may be in a book or something in school look it up and google is always there to help you along the way just like us. </span>