This is a hard one maybey try looking on quizlet.com they might have the awnser
They really help in the process of Africa's state building, creating commercial networks between parts of the continent, and introducing literacy ( especially on northern part of Africa)
They also controlled the sea route between Asia and Africa and managed to maintain the relationship between Africa and the middle east
Friction and Tectonic
Chemical Weathering
Physical Weathering
Wind and Water Erosion
<span>
http://classroom.synonym.com/natural-activities-work-break-down-rock-16920.html
I know that we aren't suppose to paste websites but I believe that this information is necessary, I hope this helped, sorry!</span>
<span>a. Hot springs would be an example of a landform from magma. </span>