On what is the geologic time scale based? geologic events

changes in climate and historical records

geologic and biologic events

evolutionary events

PLEASE HELP

Your answer is C sir

Explanation:

I know because im smart i think i may be wrong but i think im right that is the anser because I SAID SO OK

the answer to number 5 is fort sumter

was a long, primarily nonviolent series of events to bring full civil rights and equality under the law to all americans. the era has had a lasting impact on united states society, in its tactics, the increased social and legal acceptance of civil rights, and in its exposure of the prevalence and cost of racism. in the south violence and fraud in southern elections from 1868 to 1876, which had reduced black voter turnout and enabled southern white democrats to regain power in state legislatures across the south