Question

State one possible reason that the light colored variety was not completely eliminated from the polluted environment answer

Answer 1

Perhaps those light colored moths had other characteristics that allowed them to escape the predators. Additionally, there is variety in a species and additional white moths might still be born. Larger number of the dark-colored variety were present in the polluted environment because the dark colored moths would blend in with the polluted trees and therefore be camouflaged for survival.