Question

which of the following is an example of a density-dependent factor?
flooding
rainfall
predation

Explanation:

Density - dependent factors are those whose impact on a population changes with the population's density. Predation is a density - dependent factor because as the population density of prey increases, predators have more access to food, and the rate of predation can increase. In contrast, flooding and rainfall are density - independent factors as their impact on a population does not depend on the population's density.

Answer:

predation