. Answer: overpopulation is a global threat and has always been a challenge in progress of a country. Even urbanization in which people migrate from village to city is quite debatable as well as controversial. It is negative development which causes imbalance in population. There are myriad of reasons which can be discussed as problematic issues in relation to urbanization. The first and foremost is, it causes shortage of resources as overpopulation creates imbalance in available resources. Shortage of land, water, traffic jams and pollution all are related with over-population in urban areas. Unemployment and poverty has increased due to over-population. Explaining further, it is very important to have a solution towards imbalance of growing population. Rural area should be equally developed. Facilities like education, hospital and transport should be available in rural areas so that people do not migrate and cause problems in urban areas. To recapitula...