Which of the following is an example of demographic factor that is commonly used to examine change in total population over time?
A. Industrial Revolution
B. Population pyramid
C. Race/ethnicity
D. Birth rate
D. Birth rate
The correct answer is D. Birth rate.
The correct answer is B. Population pyramid.
To understand why the population pyramid is a commonly used demographic factor to examine change in the total population over time, let me explain:
Population pyramids are graphical representations of a population's structure, typically categorized by age and gender. They showcase the distribution of the population across different age groups, with males represented on one side and females on the other, creating a pyramid-like shape.
By examining the population pyramid, we can analyze important demographic indicators such as birth rate, death rate, and life expectancy. Changes in these indicators over time can help us understand how the total population is changing. For instance, a population pyramid with a wide base and a narrower top indicates a higher birth rate and a younger population, while a narrowing base suggests a decline in birth rate, leading to an aging population.
Thus, the population pyramid is a useful tool for analyzing demographic changes and understanding how population dynamics play a role in a society's development and potential challenges.