The two most important reasons for the shift in the pattern of the type of population reproduction in China are?

The two most important reasons for the transformation of the pattern of the type of population reproduction in China are

1. Objective reasons: the type of population reproduction is determined by the birth rate, the death rate and the natural growth rate. Quantitatively, the natural rate of population growth is equal to the birth rate minus the death rate, so the type of population reproduction actually depends ultimately on the birth rate and the death rate. It is objective and along a certain direction of evolution, and today China's birth rate has been slowly down, the death rate is also slowly reduced, and the natural rate of increase in the overall rate of steady decline

2. Root cause: the development of social productive forces. The increase in the level of social productivity has led to improved living conditions; improved nutrition; improved health care; increased life expectancy; and a decline in the mortality rate.