I'm very lost with this question please help

Which of the following was a similarity between classical mesoamerican and south american civilizations ?

In ww1 where did france find laborers to with their war movement? ? & what country did the french fear?

Me! these questions are based on american people in the south essential questions: question 1: for what reasons will one group of people exploit another?focus questions: question 1: what influenced the development of the south more: geography, economy, or slavery?question 2: what were the economic, political and social arguments for and againsts slavery in the first half of the 19th century.