Question

how did industrialized countries reduce their death rate?

Answer 1

That being said, Stage 4 of the DTM is viewed as an ideal placement for a country because total population growth is gradual. Examples of countries in Stage 4 of the Demographic Transition are Argentina, Australia, Canada, China, Brazil, most of Europe, Singapore, South Korea, and the U.S.

Answer 2

The present development in the science and technology sectors had enhanced the every sectors of the human society , including the medical sectors.

And due to enormous development in the medical sectors,the medical treatment has become a lot more convenient which is saving a lot of patients.

And,as a final result,the death rate of the different developed countries are going down in a remarkable scale.