Nowadays, overpopulation is still a problem for many country, not just because it causes many nuisane problems but it also effects badly to our life.
First of all, there will be shortage of accomodation, it will be no house for everyone, so they have to live in the slums - where can be very dangerous and unconvenient for people.
Second, medical care equipments will not have good quality, and bad healthcare will not help us in this world - where has so many dangerous disease like now.
Lastly, Crime can be a problem. When they need money badly for their poor life, there will be crime. Criminals can be limit, but it won't last for long.

In conclusion, an overcrowded world is a big problem.

1. Overcrowed: Rio is a overcrowed city

2. Weathy: Vietnam is a wealthy city

3. Poor: There are many poor peope in slum

4. Peaceful: In the countryside is more peaceful than in the city

5. Spacious: American is a spacious city