Question

6. What do you understand by population change? Why population change?​

Answer 1

Answer:

Population change is simply the change in the number of people in a specified area during a specific time period. Demographics is the study of population statistics, their variation and its causes. These statistics include birth rates, death rates, migration rates and sex ratios.

Hope this helps you.

Answer 2

Answer:

the change in total population over a period is equal to the number of a births, minus the number of deaths, plus or minus the net amount of migration in a population. the number of birth can be projected as a number of females at each relevant age multiplied by the assumed fertility rate.

There are three components of population change:- births, deaths, and migration. the change in the population from birth and death is often combined and referred to as a natural increase or natural change. population grows or shrink depending on if they gain people faster than they lose them.