Question

what happens to a population when immigration increases?
a. the emigration rate usually increases.
b. the emigration rate usually decreases.
c. the population size usually decreases.
d. the population size usually increases.

Explanation:

Immigration refers to the movement of people into a population. When more people move in, the population size typically grows. There is no direct causal link between an increase in immigration and changes in emigration rate in the given context.

Answer:

D. The population size usually increases.