A metropolitan region is referred to as a "megacity" if it has a population of above 10 million people. A mega city is an extremely big metropolis with a population that is often exceeding ten million.
What are the characteristics of a megacity?
Megacities are regions where there is big population resides and have wider transportation systems to locate people from one place to another.
A mega city is a very huge city that is not merely composed of several minor urban regions and can accommodate more people than a metropolis.
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