To determine the population growth rate in this population, we need to calculate two key rates: the birth rate and the death rate. Using these, we can then find the population growth rate. Here’s a step-by-step explanation:
1. Calculate the Birth Rate:
- The birth rate describes the number of new individuals born per unit of the population.
- Given that 100 individuals were born in a population of 1000, the birth rate is calculated as:
[tex]\[
\text{Birth Rate} = \frac{\text{Number of Births}}{\text{Initial Population}} = \frac{100}{1000} = 0.1
\][/tex]
2. Calculate the Death Rate:
- The death rate describes the number of individuals who died per unit of the population.
- Given that 200 individuals died in a population of 1000, the death rate is calculated as:
[tex]\[
\text{Death Rate} = \frac{\text{Number of Deaths}}{\text{Initial Population}} = \frac{200}{1000} = 0.2
\][/tex]
3. Calculate the Population Growth Rate:
- The population growth rate is determined by subtracting the death rate from the birth rate.
- Thus, the population growth rate is:
[tex]\[
\text{Population Growth Rate} = \text{Birth Rate} - \text{Death Rate} = 0.1 - 0.2 = -0.1
\][/tex]
Based on these calculations, the equation that shows how to calculate the population growth rate in this population is:
[tex]\[
0.10 - 0.20 = -0.10
\][/tex]
Therefore, the correct choice among the given options is:
[tex]\[
\boxed{C. \, 0.10 - 0.20 = -0.10}
\][/tex]
