Answer: Some are mountains valleys basins canyons buttes and hills.
Explanation:
Weathering <span>is the physical process responsible for soil creation. The correct option among all the options that are given in the question is the fourth option or the last option or option "D". The other choices are incorrect and can be neglected. I hope that this is the answer that has actually come to your help.</span>
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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Answer:
2nd one
Explanation:
it is there in my physics book