Final answer:
The limiting factor that is not density dependent is drought.
Step-by-step explanation:
The limiting factor that is not density dependent is B. drought.
Density-dependent limiting factors are factors that are influenced by the population size of a species. They include disease, food supply, and competition.
Drought, on the other hand, is an example of a density-independent limiting factor. It affects the population regardless of its size. Drought can lead to lack of water, scarcity of food, and unsuitable conditions for survival, impacting the population size.
Learn more about density-dependent and density-independent limiting factors