Answer:
The first civilizations appeared in major river valleys, where floodplains contained rich soil and the rivers provided irrigation for crops and a means of transportation.
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Work was the easiest settlement was the hardest without paperwork
Suramérica, continente con amplías características y puntos de referencia que varían, tales como: cordillera de los Andes, río Amazonas, por último y no menos importante, las extensas llanuras.
Is it OK if you put a picture of the problem
The slavery known to Africans prior to European contact did not involve a belief in inferiority of the slaves. Most slaves in West Africa were captured in war.