List any two factors that could lead to speciation.

Speciation:

1. When a group of individuals within a species diverge from the rest of the species and develop its own distinct features, it is known as speciation.

Factors responsible for speciation:

1. Genetic drift: The sudden change in gene frequency to one or the other side is called genetic drift
2. Natural selection: Natural selection includes all those kinetic forces introduced by physical and biotic factors, which determine in what direction an organism is going to change.