can somebody please please help me with this. would the line be vertical or horizontal? please draw it on the map

Which statement best describes a contribution of the works of nicolas copernicus and galileo galilei?

Which statement describes an important outcome of the congress of vienna? a. napoleon launched his final european military campaigns. b. european states had their borders clearly defined. c. jewish people were given equal right in germanic states d. the slave trade became increasingly important to european economies.

Which would make the best heading for this list of notes about the migration of african-americans during the reconstruction era?