Which factors contribute to the process of speciation?

Genetic drift operates in

Find the mismatch from the following pairs.

In the case of the peppered moth $(Biston \text{ } betularia)$, the black-coloured form became dominant over the light-coloured form in England during the industrial revolution. This is an example of:

In natural selection,more individuals acquire value other than the mean character value,which indicates . . . . . . .

In the peppered moth $(Biston \text{ } betularia)$ in England, the dark-colored form became more prevalent than the light-colored form during the Industrial Revolution. This is an example of which of the following?