The kingdom of Alger England
The correct answer is<span> D.Cyclic movements are short trips and involve a return to the home base, while migration is permanent.
Cyclic movement is what birds do during winter after which they go home. Migration is when animals move completely to a new place and enter a new habitat.</span>
I know that Boston is a main port of the American Economics, so they would want it for exporting and importing goods. I would assume that Philadelphia would have a related cause.
