Which environmental change is not due to the overpopulation of humans? A. an increase in global warming
O
B. an increase in Earth's resources
C. air and water pollution
D. habitat loss for animals

Which of the following can occur to two segments of a population if they are geographically isolated 1.) they can only share some types of genes 2.)both groups most likely become extinct 3.)they find a way to come back together 4.)eventually they become separate species