Question

developed countries are facing challenges because their populations are aging due to decreased death rates. increasing due to higher birth rates. losing a sense of economic stability. competing for limited natural resources.

Explanation:

In developed countries, improved healthcare has decreased death - rates, leading to an aging population which poses challenges like increased pension and healthcare costs. Birth rates are generally low in developed countries. The other options are not directly related to population - related challenges in developed countries.

Answer:

aging due to decreased death rates.