What happened to the colonist at jamestown after john smith left?

What would lead a historian to consider two events to have a relationship of correlation rather than causation?

During world war 11 how did the policy of internment affect people of japanese descent in the united states

Which of the following resulted from trade between nomadic people of central asia and civilizations of india during the vedic age? a. the people of the vedic age died from new diseasesb. the people of the vedic age could better obtain cattle and other goodsc. the nomadic people of central asia learned about shipbuildingd. the nomadic people of central asia wrote epic poetry