One of the main problems of rapid growth in a city’s population is finding a job. In many cities, job opportunities are not increasing as fast as the population is growing. Thus, unemployment would be a major issue for people which can lead to many consequences including illegal activities such as theft. Other than that, environmental problems are another issue which should be considered. In overcrowded cities due to excessive waste production by people and plenty of vehicles the risk of environmental pollution is high. Other than that, because many individuals work in factories and other industrialized places in town the amount of contamination might become even higher. The air and water will be contaminated by substances released from using fossil fuels and municipal wastes.