10. what is not a theory about the fall of zimbabwe?
@ it was conquered by muslim invaders.
6 population growth caused destructive land damage.
over farming and drought caused its fall.
@ there was a takeover by a northern kingdom.
done

explanation:

the addition to geographic boundaries that might have  kept the people of the huang river civilization from traveling to far distance region is that they had learned about the other river valley civilizations but feared contact would bring invasion.

hope this .

plz give me brainliest!

its c not d   tell me if that´s correct