The largest formal unit of geologic time is
a period
an era
an eon
a century

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

45 were the 1920s a “return to normalcy” or a “time of great change”? submit it in a letter format.

Which of the following scenarios best shows the relationship between personal and civic responsibility? tara stays home on friday night to babysit her sister instead of going to a movie with her friends. theo asks neighbors to sign a petition asking the city council to lower the speed limit in their neighborhood to make it safer for children. natalie watches a presidential debate with her parents in order to complete a homework assignment for school. nick’s scout troop adopts a section of highway in their community to keep free from litter.