The correct answer should be D. an urban unit with clear boundaries and a degree of autonomy
A has to be a town, even though the definitions of the two are almost the same. B is not it because a city can be an industrial center, not a cultural one. C is not it because natural geographic boundaries are not necessary.
Answer:
The miasma theory (also called the miasmatic theory) is an obsolete medical theory that held diseases—such as cholera, chlamydia, or the Black Death—were caused by a miasma (μίασμα, ancient Greek: "pollution"), a noxious form of "bad air", also known as night air.
Answer:
Scientists who work to uncover the story of early people by digging up and studying the traces of early settlements. ... Answer: This scientists learns about early people by digging up and studying things like artifacts and fossils. What have archaeologists learned about early humans from the evidence they have found?
I’m not sure sorry hope ya get help
