Geographers divide the world’s land masses into seven

hemispheres.
continents.
countries.
oceans.

What river valley civilization in the plow

Alexander stephens’ opinion on secession and compromise led to what being written? a)the kansas-nebraska act b)the missouri compromise c)the u.s. constitution d)the georgia platform

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.