Why would the Germans want Mexico involved in World War I?

The 14th amendment overruled the supreme court case of dred scott vs. sandford. the landmark supreme court case determined which of the following points? a.slaves could not be citizens b.non-landowners could not be citizens c.blacks could not be citizens d.all persons born or naturalized in the united states vary differently in citizen status.

Does anyone know why the second great awakening occurred? (i need an answer asap because this is a question on my assignment! < 3 : ))

Which best statement best describes the political structure of the ancient aztecs