The population of the world has changed greatly in the last 200 years. However, the changes in the developed world have been different from the changes in the developing world. How is the population growth observed in less developed countries in the 2nd part of the 20th century different from the population growth observed in more developed countries in 19th century?. A. It is taking place at much higher mortality levels B. It is taking place at much higher rates and in unprecedented absolute numbers added to the population C. It is similar to what was observed in developed countries in 19th century D. It is taking place in the absence of industrialization and urbanization