Question

Define : Birth rate ,death rate , Life expectancy , Population density ,sex ratio medium ans​

Answer 1

explanation....

*birth rate refers to the number of births that occur per thousand people, per year. Similarly, death rate refers to the number of deaths per thousand people, per year.

*Mortality rate, or death rate, is a measure of the number of deaths (in general, or due to a specific cause) in a particular population, scaled to the size of that population, per unit of time

*The term “life expectancy” refers to the number of years a person can expect to live. By definition, life expectancy is based on an estimate of the average age that members of a particular population group will be when they die.