Question

what explains an increase in population growth?
immigration
biodiversity
island biogeography
emigration

Explanation:

Population growth is affected by factors like immigration (people moving into an area), emigration (people moving out), birth rate, and death rate. Immigration adds individuals to a population, increasing its size. Biodiversity refers to species variety, not population growth. Island biogeography studies species distribution on islands, not population growth. Emigration reduces population size. So immigration explains an increase in population growth.

Answer:

A. immigration