The concentration of metropolitan areas along the eastern seaboard of the United States, from Boston to Washington, D.C., is known as what?
Explanation
Answer - A - The concentration of metropolitan areas along the eastern seaboard of the United States, from Boston to Washington, D.C., is known as a megalopolis.
Key Takeaway: A megalopolis is defined as a chain of metropolitan areas that are pretty much adjacent to one another. In the 1950s, it was first used to describe the huge metropolitan area along the eastern coast that includes Boston, New York, Philadelphia, Baltimore, and Washington, D.C. Often, a megalopolis is also a term for a large metropolitan area with a population of more than 10 million.
