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Yep, I did it again. I combined the flashcards. There's only six words, come on, it's not that bad!
Generally flat regions surrounded by mountains or other higher land.
The uppermost layer of a tropical rain forests' trees where limbs are spread out and blouck out sunlight.
A major copper-mining region of Central Africa.
Open-air trading markets in Central Africa.
A cream-colored material that comes from elephant tusks.
A variation of a language spoken in a region.