Question

what factor describes when populations decrease because animals are moving out of a population? limiting factors emigration immigration exponential growth

Explanation:

Emigration refers to the movement of individuals out of a population, which can lead to a decrease in that population's size. Limiting factors are broader aspects that restrict population growth but not specifically about movement out. Immigration is the movement into a population. Exponential growth is about rapid population increase, not decrease due to movement out.

Answer:

B. Emigration