What is the smallest unit of time on a geologic time scale

During wwi, literacy tests were used to control immigration, which marked a return of what type of ideology in some americans?

The major impact third parties have on presidential elections has been to.. a. encourage larger vote turnout b. recruiter leader from the democratic and republican party to run for president c. generate increased party identification among the electorate d. developing issues that are later adopted by the major political parties e. drawn off of votes from the major parties to throw election into the house representatives

What does the fcc regulate? food and beverage products communications infrastructure environmental policies businesses breaking security laws