Landscape of the United States using the terms highland and lowland.

I’m not quite certain what your asking, but what I got from the question was: You could say that the North western part of the United States is the highland because we have the Rockies (or in other words the Rockies mountains, which are huge in elevation) in that area and our elevation is higher compared to the south eastern part of the United States who border the ocean (can’t remember which ocean). I hope this is what you were looking for!

It developed as a reaction to the impact of european colonialism in africa on peoples of african descent. in the  mid-20th century, activists in africa adopted pan-africanism as a rallying cry for independence from colonial rule. some african pan-africanists sought to unite the continent as one independenthope it was useful