Final answer:
Evidence for economic development can be seen when we observe that the share of global infectious disease mortality has decreased significantly in recent decades. The decrease in the global mortality rate of infectious diseases is evidence of economic development, whereas changes in age structures indicating aging populations have implications for labor markets and economic growth.
Step-by-step explanation:
Evidence for economic development can be seen when we observe that the share of global infectious disease mortality has decreased significantly in recent decades. Since 2002, the share of the world's population affected by infectious diseases has decreased from 0.30 percent to 0.24 percent.
This trend supports the view that developments in health care and living standards contribute to a decline in the impact of infectious diseases on human population growth. Conversely, evidence of aging populations and their effects on economies can be observed through significant changes in age structures, which reflect a demographic shift that poses challenges for labor markets, social services, and overall economic growth.