The birth rate is also referred to as and the death rate is also known as

The birth rate is also referred to as population rate and the death rate is also known as mortality rate.  These terms are used in demography. Population rate is the total number of live births per 1,000 in a population in a year or period, while mortality denotes the frequency of death in a population during a specified interval.

if u need the answers look it up on google youll find it trust im just saying this incase no one out : )