why is a megacity a megacity
A megacity is usually defined as a metropolitan area with a total population in excess of ten million people.A megacity can be a single metropolitan area or two or more metropolitan areas that converge. The terms conurbation, metropolis and metroplex are also applied to the latter.he term megacity was coined in the late 19th or early 20th centuries, one of the earliest documented uses being by the University of Texas in 1904.