Answer:
The correct answer is - population aging.
Explanation:
Population aging is a process of increase in the average (median) age of the population as a result of lower birth rates and an increase in the life expectancy. Â
On the one hand, fewer children are born and thus fewer young people are represented in the population make-up. While on the other hand, as a result of improved healthcare and the quality of life, older people live longer which increases their number in the general population. Â
Ultimately, the average age among the population increases. This phenomenon is common for the first world countries, such as Nordic countries.
