By 2050, an estimated _____ of the world's population will live in Urban areas.

two-third

The correct answer is Option (2) → two-third

At present, 47 per cent of the world’s six billion population lives in cities and more will join them in near future. This proportion is estimated to go up to 50 per cent by 2008. That will put pressure on governments to make urban areas better places to live with optimum infrastructure facilities for desirable quality of life. By 2050, an estimated two-thirds of the world’s population will live in urban areas, imposing even more pressure on the space infrastructure and resources of cities, which are manifested in terms of sanitary, health, crime problems and urban poverty.