As the number of megacities is increasing worldwide how does

As the number of megacities is increasing worldwide, how does the effect of urbanization impact the development/sustainability of these cities?

Solution

Urbanisation has totally changed the face of the world. People started leaving village life and moving to cities for better living. As cities have more employement opportunities and better facilities people are preferring cities over villages. This gave rise to megacities with more than 10 million population. Megacities are present all over the world. Urbanisation is the main cause for the development of megacities and it is believed to increase with time.