There are many difference between developed and developing countries such as education, economy, politics, culture and so on. I'd like to talk about the birth rates and death rates about them.Developing countries have high birth rates because Many parents will have a lot of children in the expectation that some will die because of the high infant mortality rate Large families can help in looking after the farm The children will be able to look after their parents if they become old or sick; there may not be a old age pension scheme There may be a shortage of family planning facilities and adviceDeveloped countries have low birth rates because It is expensive to look after large families More women prefer to concentrate on their careers Increasing sexual equality has meant women have more control over their own fertility There is a ready availability of contraception and family planning adviceDeveloping countries have high death rates because, in many cases, there are Dirty, unreliable water supplies Poor housing conditions Poor access to medical sevices Endemic disease in some countries Diets that are short in calories and/or protein Developed countries have low death rates because, in many cases, there are Good housing conditions Safe water supplies More than enough food to eat Advanced medical services which are easy to access Some developed countries have a high death rate as they have an ageing population with many older people.As you can see, the population has reflected many difference between two classes. China as a developing country still have a long way to go.