According I could understand, the demographic transition involves a country moves from a pre-industrial economic base to an industrial urban base, with a corresponding reduction in family size and population growth. Thus it can be said that the slower population growth is due to a better standard of living, and improvements in health care, education (especially for women), health and other public services.
Stage 1: The birth and death rates are high, and the population has a slow or no growth. Stage 2: Birth rates remain high, but mortality rates drop sharply as a result of improvements in nutrition, medicine, public health and sanitation. The population began to grow rapidly.
Stage 3: Birth rates begin to decline rapidly; mortality rates
Stage 1: The birth and death rates are high, and the population has a slow or no growth. Stage 2: Birth rates remain high, but mortality rates drop sharply as a result of improvements in nutrition, medicine, public health and sanitation. The population began to grow rapidly.
Stage 3: Birth rates begin to decline rapidly; mortality rates