1. - The problem of food sources. Overpopulation will lead to rapid depletion of food
- Housing problem. Overpopulation will lead to lack of places to live
- Fertility problems. Overpopulation, imbalanced sex ratio at birth will begin to have social consequences for future generations in the next 10 years.
- The problem of natural resources and a natural field. Overpopulation, population pressure on natural resource consumption and natural environment will continue to increase in the next 10 years!
2. - adjust the policy of natural population development.
- internal migration policy. This policy is usually geographical distribution and tight population policy, the two goals must be compatible.
- population distribution policy. It usually has multiple purposes, such as the development of specific areas of agriculture, industry and mining, strengthening border defense, or evacuating populous areas and so on.
- international immigration policy. State and can be converted into two types of immigration, and are often used to implement forms of legislation.
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