Answer:
The correct answer is death rate.
Step-by-step explanation:
Death rate is also called the mortality rate which is defined as the number of individuals in a population dying in a given period. It is also expressed as the number of people who die from a population having 1000 individuals in a year.
If the birth rate and the death rate of a population is equal then the population growth rate is zero. If the birth rate exceeds the death rate then its population growth rate is positive and when the death rate exceeds the birth rate then population growth is negative.
A negative population growth rate shows that the mortality rate is high due to which the number of individuals in the population is decreasing.