Here were the choices on that question:
a. poverty
b. lack of adequate rivers
c. mountains
<span>d. richness
The answer is D. richness. Based on A Companion to World History, the African Sahel can be a corridor of communication between Nile and Niger valleys but did not materialize. The reason was the richness of Sahel that it that it can provide for itself even without trade.
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"Water in the form of vapor" is the choice among the choices given in the question that shows the form in which water enters the atmosphere. The correct option among all the options that are given in the question is the second option or option "B". I hope the answer has helped you.
So to me it looks like that into more of the future more people are born in Urban areas and in the Rural areas it looks like it will slowly go down till there is little to none left.
C.?
Because the school with students, with high grades, means smarter, and better?
or D.
Not sure, lol
Formed from a valcano have a nice day!