Choose the most suitable word for each space.

There are a number of problems which citizens have to deal with every day. However, steps can be taken to tackle these problems, and one of the most effective solutions is encouraging citizens to leave for smaller regional towns.
There are three main issues that ___(1)___ affect daily urban life. To begin with, ___(2)___ is no doubt becoming one of the considerable problems existing in inner-city, which causes many adverse impacts ___(3)___ human’s life such as traffic congestion and the ___(4)___ of accommodations. Another serious problem that ___(5)___ in densely populated areas are facing is air pollution as a consequence of not only vehicle fumes but also smoke from factories and industrial zones. As a result, contaminated air___(6)___ a huge threat to human’s health such as lung cancer and other respiratory diseases. Finally, the family relationship of individuals living in big cities is at risk of breakdown because family members are too busy handling their own business rather than spend time together.
In order to ___(7)___ these problems, governments have taken many different solutions, and encouraging citizens to move to rural areas is one of the most effective options for many reasons. Firstly, moving people from areas of high population density to lower ones prevents overpopulation in big cities. As a result, traffic quality ___(8)___. Secondly, fewer people gathering in one area means less garbage as well as vehicles, and hence reduces environmental pollution and uplifts human’s physical condition. Finally, the living standard is lower in rural areas, which does not put too much pressure on people to ___(9)___ ends meet. Therefore, they can spend ___(10)___ time building tighter family relationships.
In conclusion, there are a number of problems that people have to face when they live in big cities. But governments can tackle these problems by encouraging citizens to move to smaller towns.