The population growth is growing 88 million people every year, which in fact, there will be about 241,095 people every day.There have been population increase, population decrease in countries depending on the matter of problem or cause.
This is a model of way that population growth can be divided into four stages.
Birth rate
Death rate
Total population
Projection
Diapositiva 3
Overpopulation is the number of people living in an area that is greater than the resources available to support that population. A country with a high population doesn't mean it is a overpopulation country.
Underpopulation is the number of people living in an area that is less than the resources available. A country with a low population doesn't mean it is a underpopulation country.