<span>Much of the commercially important waterways of the United States consist of the Mississippi River System—the Mississippi River and connecting waterways. .... States on the Gulf Coast and throughout the Midwest and Ohio Valley ...</span>
Answer:
This evolution will trigger the event known as "galactic cannibalism."
Explanation:
Galactic cannibalism occurs when a galaxy "completely swallows" another galaxy, that is, it incorporates it and promotes a fusion between the two, forming a single galaxy. This occurs as the universe ages and the distance between galaxies narrows. However, this happens very slowly, mainly because the galaxies are located very far from each other, and it is necessary for the universe to age millions of years for galactic cannibalism to occur.
It is the isthmus of Suez which is very narrow.
