Natural barrier definition

How did nationalism transform the identity of africans

Using mr smith and his id, identify two potential internal validity threats that might affect the a—b design. tell me how that threat might impact conclusions in the a—b design. note #1: you cannot use maturation (since i already did that one for note #2: there are some mr smith id threats that won’t have much impact in a single case design.

Our environments can change human behavior. describe some ways that environment changes the choices we make. what does the connection between humans and environment have to do with the study of geography?