<span>Among the choices, the one that describes an advantage oral history has over written history is C, Oral history can engage and entertain listeners by using music, rhythm, and poetry. They aren't considered primary sources because they can be changed as time goes on, depending on the storyteller.</span>
Your answer would be Charles Darwin and Alfred Russel Wallace.
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The enormous amount of ethnicities and languages in the countries of Sahara contributed to mainly bad and unwanted things to be happening. In lots of the countries there's big devidence between the ethnic groups and it is not unusual that they have clashes that very often have devastating consequences. The countries of the southern half of Sahara usually have clashes on daily basis and there's open hatred and violence between the different ethnic groups, which also leads to the governments having enormous difficulties in the control of some regions. In the northern half of Sahara there has been a systematic genocide going on for quite some time that is kept behind the curtains, like the example with the Barbers and the Jews of North Africa whose numbers have been significantly falling down and they have been massacred systematically by other groups.
Due to the fact that there were hot air balloons and everything else, he wanted to explore beyond that and go to the next level, which then in turn made him want to start tinkering with rockets.
