Question

Expt. No.
b) What is the reason of not getting the exact number of population?​

Answer 1

Step-by-step explanation:

lower levels of immigration, population aging, and declining fertility rates are the reasons .A drop in net immigration to the another country.....

Answer 2

As people are always dying and babies are always being born so doctors don’t know the exact figure of the population, just an estimate.
hope this helps x