The composition of our society has been changing. We [world] are becoming a more urban population. Mega-cities, those with more than 10 million residents, are booming.
![The composition of our society has been changing. We [world] are becoming a more urban population. Mega-cities, those with more than 10 million residents, are booming.](http://cdn.quoteddaily.com/images/hari-sreenivasan/the-composition-of-our-society-has-been-changing-we-world-are-becoming-a-more-urban-population-mega-cities-those-with.jpg)
The composition of our society has been changing. We [world] are becoming a more urban population. Mega-cities, those with more than 10 million residents, are booming.