In many countries of the world people are moving to the cities so the population of countrysides is decreasing. Why it is happen. It have positive or negative effect and why?

In many regions around the world, people are migrating to cities, so the population of the rural areas have a downward trend. I tend to think that, this is a completely positive phenomenon for human society because is can improve an economical situation of the city. People move from countryside because there are a lot […]