What effect does natality have on a population?

According to the $1991$ census,the population density of Madhya Pradesh is:

In the given figure,which factors are responsible for the increase in population density?

In a laboratory population of $40$ fruit flies, if $4$ flies die in a week, what is the death rate?

Which of the following factors contribute to an increase in population density?

The average natality rate in our village is $25$, the average mortality rate is $24$, immigration is $2$, and emigration is $3$. What is the net increase in the population?