Population produce opportunities and challenges

       The world  population is becoming larger and larger。So we must provide more food for them。

And people will feel smaller and smaller on our planet。So some scientists are trying to find other planets to live on。A report said the developed countries have a smaller population。Because of the decreased fertility rates cased by increased contraceptive use。

       But in China，we will be hated if will taking about the sex in the open。All the reason is china’s history is very feudal。Every family thinks that more children will be better。Than the family will be strong。And when they are old。They will be taken care of their children。If they have more children。When they are gone their children won’t be teased。

       The population is becoming larger and  large so the land will become smaller and smaller。If we do not stop the increasing population。The planet will be full of people。At that time we will have no land to live、 no food to eat，and we will be dying。

       Decades ago china’s population was small。Those year population are explosions。To control the population of China，government made the one-child-policy。But china’s population will be

down less in 20 years。