Question

Causes of population change ecology biology discussion

Answer 1

Overpopulation is caused by number of factors. Reduced mortality rate, better medical facilities, depletion of precious resources are few of the causes which results in overpopulation. ... A direct result of this has been increased lifespan and the growth of the population.

Answer 2

population change mainly occurs due to four processes ie natality, mortality, immigration and emigration. natality and immigration contribute to the increase in population while mortality and emigration contribute to decrease in population.