if r = population growth rate; b = birth rate; i = immigration rate; d = death rate; e = emigration rate…

if r = population growth rate; b = birth rate; i = immigration rate; d = death rate; e = emigration rate, which of these equations most accurately describes population growth?\na r = (d + e) - (b + i)\nb r = (b + i) - (d + e)\nc r = (b + e) - (d + i)\nd r = (b - e) + (d - i)

if r = population growth rate; b = birth rate; i = immigration rate; d = death rate; e = emigration rate, which of these equations most accurately describes population growth?\na r = (d + e) - (b + i)\nb r = (b + i) - (d + e)\nc r = (b + e) - (d + i)\nd r = (b - e) + (d - i)

Answer

Explanation:

Step1: Understand population - change factors

Population growth is affected by births, deaths, immigration, and emigration. Births and immigration increase population, while deaths and emigration decrease it.

Step2: Formulate the equation

The population growth rate $r$ is the net result of the factors that increase the population (birth rate $b$ and immigration rate $i$) minus the factors that decrease the population (death rate $d$ and emigration rate $e$). So, $r=(b + i)-(d + e)$.

Answer:

B. $r=(b + i)-(d + e)$