Which federal courts have witnesses testify and juries hear cases and deliver verdicts

Iwill give 94 points to whoever me with this question: the invention of the model t had several effects on how people lived. in your opinion, what was the most significant social effect of the model t? cite evidence to support your conclusion.

Approximately how many europeans jews died in the nazi concentrations camps and death camps

Me < 3 there are multiple ‘3rd party’ political parties in the us. what are the benefits of having 3rd parties? what are the disadvantages of being a member of one? would the u.s. benefit if there were more 3rd parties created, more support for the current ones, or would it be best to get rid of them altogether? why?