describe some of the problems caused by overcrowding

Our modern day cities face a number of serious problems which are due to overcrowding.The consequences of too dense a population is that one or all of there areas must suffer such as housing,health care,education,jobs and life quality.Take Britain as an example.In Britain,main cities all have a number of people living on the streets.Life must be extremely hard for these people and one effect of such a lifestyle is that drug abuse and crime rates rise.
In addition,the greater the population,the more natural resources are burnt up and,consequently,the more pollution is created.A city crowded with people leads to roads crawling with cars.Living in a city,therefore,forces us to be part of an unhealthy consumer throwaway society,which creates illness and environmental crisis,rather than curing it.