A megacity is typically characterized as a metropolitan territory with an aggregate populace in abundance of ten million individuals. A megacity can be a single metropolitan territory or at least two metropolitan ranges that focalize. The terms conurbation, city, and metroplex are moreover connected to the last mentioned.
Not least because of their population density, cities have come to be an enormous focal point once it comes to sustainable improvement. They may be getting larger, particularly in the developing world, but that does not make them better.