1) On the Inca Empire-Quechua People: You have to write 4 full pages about the differences between this civilization, their accomplishments, their customs and believe as well as their impact or differences between themselves from the Aymara People as well their contribution that both civilization has left to society. In addition, you have to mention which countries and territories they have covered and where their descendent are still living.
2) Regarding the Mapuche and the Guarani: You have to write also 3 full pages about the differences between these two groups. What accomplishments both groups have and still are contributing to their countries and humanity. Be specific about each one.