Approximately how long after migratory people crossed the North American land bridge did the first mesoamerican civilizations arise?

What was the most important role did the diaspora play in the history of southwest asia a) it established the first kindom of iseral b) it resulted in the exodus of isrealites back to canaan c) it lead to the spreading of most jew outside of isreal d) it made isreal vulnerable arab conquest

One way in which the european union encourages trade among countries is through the use of

The primary purpose of a certificate of confidentiality is to: allow law enforcement to investigate abuse cases.protect researchers from disclosing conflicts of interest.prevent subjects from knowing the purpose of a study.protect identifiable research information from compelled disclosure.